diff --git a/AyCode.Database.Tests/DatabaseTestModelBase.cs b/AyCode.Database.Tests/DatabaseTestModelBase.cs
index b04328e..b9e7bc5 100644
--- a/AyCode.Database.Tests/DatabaseTestModelBase.cs
+++ b/AyCode.Database.Tests/DatabaseTestModelBase.cs
@@ -4,10 +4,10 @@ using AyCode.Database.DbContexts;
 
 namespace AyCode.Database.Tests;
 
-public abstract class DatabaseTestModelBase<TDbContext> : TestModelBase where TDbContext : DbContextBase
+public abstract class DatabaseTestModelBase<TDbContext> : TestModelBase where TDbContext : AcDbContextBase
 {
     protected DatabaseTestModelBase()
     {
-        //var dal = new dal
+        //var acDal = new acDal
     }
 }
\ No newline at end of file
diff --git a/AyCode.Database.Tests/DatabaseTests.cs b/AyCode.Database.Tests/DatabaseTests.cs
index 0b8ad84..8f287d8 100644
--- a/AyCode.Database.Tests/DatabaseTests.cs
+++ b/AyCode.Database.Tests/DatabaseTests.cs
@@ -3,7 +3,7 @@ using AyCode.Database.DbContexts;
 namespace AyCode.Database.Tests
 {
     [TestClass]
-    public abstract class DatabaseTests : DatabaseTestModelBase<DbContextBase>
+    public abstract class DatabaseTests : DatabaseTestModelBase<AcDbContextBase>
     {
         [TestMethod]
         public void TestMethod1()
diff --git a/AyCode.Database.Tests/Users/UserDbSetTest.cs b/AyCode.Database.Tests/Users/UserDbSetTest.cs
index 357c275..7f9a2a9 100644
--- a/AyCode.Database.Tests/Users/UserDbSetTest.cs
+++ b/AyCode.Database.Tests/Users/UserDbSetTest.cs
@@ -11,12 +11,12 @@ namespace AyCode.Database.Tests.Users
 {
     [TestClass]
     public abstract class UserDbSetTest<TDbContext, TUser, TUserToken> : DatabaseTestModelBase<TDbContext>
-        where TDbContext : DbContextBase, IUserDbContextBase<TUser, TUserToken> 
+        where TDbContext : AcDbContextBase, IAcUserDbContextBase<TUser, TUserToken> 
         where TUser : class, IUserBase 
         where TUserToken : class, IUserTokenBase
 
     {
-        //UserDalBase<UserDbContext, User, UserTokenBase>
+        //AcUserDalBase<UserDbContext, User, UserTokenBase>
         //private UserDal _userDal;
 
         [TestInitialize]
diff --git a/AyCode.Database/DataLayers/DalBase.cs b/AyCode.Database/DataLayers/AcDalBase.cs
similarity index 90%
rename from AyCode.Database/DataLayers/DalBase.cs
rename to AyCode.Database/DataLayers/AcDalBase.cs
index 80deac0..4691581 100644
--- a/AyCode.Database/DataLayers/DalBase.cs
+++ b/AyCode.Database/DataLayers/AcDalBase.cs
@@ -12,7 +12,7 @@ using Microsoft.EntityFrameworkCore;
 
 namespace AyCode.Database.DataLayers;
 
-public abstract class DalBase<TDbContext> : IDalBase<TDbContext> where TDbContext : DbContextBase
+public abstract class AcDalBase<TDbContext> : IAcDalBase<TDbContext> where TDbContext : AcDbContextBase
 {
     public string Name { get; private set; }
 
@@ -20,15 +20,15 @@ public abstract class DalBase<TDbContext> : IDalBase<TDbContext> where TDbContex
 
     public TDbContext Context { get; private set; }
 
-    //protected DalBase()
+    //protected AcDalBase()
     //{
     //    Name = $"{GetType().Name}";
     //}
 
-    protected DalBase() : this(Activator.CreateInstance<TDbContext>())
+    protected AcDalBase() : this(Activator.CreateInstance<TDbContext>())
     { }
 
-    protected DalBase(TDbContext ctx)
+    protected AcDalBase(TDbContext ctx)
     {
         Context = ctx;
 
diff --git a/AyCode.Database/DataLayers/IDalBase.cs b/AyCode.Database/DataLayers/IAcDalBase.cs
similarity index 69%
rename from AyCode.Database/DataLayers/IDalBase.cs
rename to AyCode.Database/DataLayers/IAcDalBase.cs
index b30f3f3..8f8bf4f 100644
--- a/AyCode.Database/DataLayers/IDalBase.cs
+++ b/AyCode.Database/DataLayers/IAcDalBase.cs
@@ -2,12 +2,12 @@
 
 namespace AyCode.Database.DataLayers;
 
-public interface IDalBase //: IDisposable
+public interface IAcDalBase //: IDisposable
 {
     public string Name { get; }
 }
 
-public interface IDalBase<TDbContext> : IDalBase where TDbContext : DbContextBase
+public interface IAcDalBase<TDbContext> : IAcDalBase where TDbContext : AcDbContextBase
 {
     public bool AutoCloseSession { get; set; }
     public TDbContext Context { get; }
diff --git a/AyCode.Database/DataLayers/PooledDal.cs b/AyCode.Database/DataLayers/PooledDal.cs
index 11ffc2b..5ecb808 100644
--- a/AyCode.Database/DataLayers/PooledDal.cs
+++ b/AyCode.Database/DataLayers/PooledDal.cs
@@ -7,13 +7,13 @@ namespace AyCode.Database.DataLayers
     {
         private static readonly PooledDal Instance = new();
         
-        private readonly ConcurrentDictionary<Guid, ConcurrentDictionary<Type, IDalBase>> _dataLayersPoolById = new();
-        private static ConcurrentDictionary<Guid, ConcurrentDictionary<Type, IDalBase>> DataLayersPoolById => Instance._dataLayersPoolById;
+        private readonly ConcurrentDictionary<Guid, ConcurrentDictionary<Type, IAcDalBase>> _dataLayersPoolById = new();
+        private static ConcurrentDictionary<Guid, ConcurrentDictionary<Type, IAcDalBase>> DataLayersPoolById => Instance._dataLayersPoolById;
 
         public static int Count => DataLayersPoolById.Count;
         public static void Clear() => DataLayersPoolById.Clear();
 
-        public static TDal CreateDal<TDal>() where TDal : IDalBase => Activator.CreateInstance<TDal>();
+        public static TDal CreateDal<TDal>() where TDal : IAcDalBase => Activator.CreateInstance<TDal>();
 
         /// <summary>
         /// 
@@ -21,20 +21,20 @@ namespace AyCode.Database.DataLayers
         /// <typeparam name="TDal"></typeparam>
         /// <param name="id">ONLY SessionId or logged in PlayerId!</param>
         /// <returns></returns>
-        public static TDal GetDalById<TDal>(Guid id) where TDal : IDalBase
+        public static TDal GetDalById<TDal>(Guid id) where TDal : IAcDalBase
         {
             if (id.IsNullOrEmpty()) return CreateDal<TDal>(); //TODO: A Guid.Empty id-t ÁTGONDOLNI! - J.
 
             if (DataLayersPoolById.TryGetValue(id, out var dataLayersByType)) 
                 return GetDalByType<TDal>(dataLayersByType);
 
-            dataLayersByType = new ConcurrentDictionary<Type, IDalBase>();
+            dataLayersByType = new ConcurrentDictionary<Type, IAcDalBase>();
             DataLayersPoolById.TryAdd(id, dataLayersByType);
 
             return GetDalByType<TDal>(dataLayersByType);
         }
 
-        private static TDal GetDalByType<TDal>(ConcurrentDictionary<Type, IDalBase> dataLayersByType) where TDal : IDalBase
+        private static TDal GetDalByType<TDal>(ConcurrentDictionary<Type, IAcDalBase> dataLayersByType) where TDal : IAcDalBase
         {
             if (dataLayersByType.TryGetValue(typeof(TDal), out var dataLayer))
                 return (TDal)dataLayer;
diff --git a/AyCode.Database/DataLayers/Users/UserDalBase.cs b/AyCode.Database/DataLayers/Users/AcUserDalBase.cs
similarity index 94%
rename from AyCode.Database/DataLayers/Users/UserDalBase.cs
rename to AyCode.Database/DataLayers/Users/AcUserDalBase.cs
index 240c70e..0a11093 100644
--- a/AyCode.Database/DataLayers/Users/UserDalBase.cs
+++ b/AyCode.Database/DataLayers/Users/AcUserDalBase.cs
@@ -10,11 +10,12 @@ using AyCode.Interfaces.Users;
 using Microsoft.EntityFrameworkCore;
 using AyCode.Database.Extensions;
 using AyCode.Core.Consts;
+using AyCode.Database.DbSets.Users;
 
 namespace AyCode.Database.DataLayers.Users
 {
-    public abstract class UserDalBase<TDbContext, TUser, TUserToken> : DalBase<TDbContext>, IUserDbContextBase<TUser, TUserToken> 
-        where TDbContext : DbContextBase, IUserDbContextBase<TUser, TUserToken> 
+    public abstract class AcUserDalBase<TDbContext, TUser, TUserToken> : AcDalBase<TDbContext>, IAcUserDbContextBase<TUser, TUserToken> 
+        where TDbContext : AcDbContextBase, IAcUserDbContextBase<TUser, TUserToken> 
         where TUser : class, IUserBase 
         where TUserToken : class, IUserTokenBase
     {
diff --git a/AyCode.Database/DataLayers/Users/AcUserDalExtension.cs b/AyCode.Database/DataLayers/Users/AcUserDalExtension.cs
index b549a13..5dbda8a 100644
--- a/AyCode.Database/DataLayers/Users/AcUserDalExtension.cs
+++ b/AyCode.Database/DataLayers/Users/AcUserDalExtension.cs
@@ -11,7 +11,7 @@ namespace AyCode.Database.DataLayers.Users
 {
     public static class AcUserDalExtension
     {
-        //public static bool DeleteUser(this IUserDbContextBase ctx, IUserBase user)
+        //public static bool DeleteUser(this IAcUserDbContextBase ctx, IUserBase user)
         //{
         //    if (user == null) return false;
 
@@ -36,30 +36,19 @@ namespace AyCode.Database.DataLayers.Users
         //    return ctx.Remove(user).State == EntityState.Deleted;
         //}
 
-        public static TUser? GetUserById<TUser>(this IUserDbSet<TUser> ctx, Guid userId) where TUser : class, IUserBase
-        {
-            return ctx.Users.FirstOrDefault(u => u.Id == userId);
-        }
-
-        public static TUser? GetUserByEmail<TUser>(this IUserDbSet<TUser> ctx, string email) where TUser : class, IUserBase
-        {
-            var emailLower = email.ToLower();
-            return ctx.Users.FirstOrDefault(u => u.EmailAddress == emailLower);
-        }
-
-        //public static IEnumerable<UserToUserConsent> GetUserConsentsByUserId(this UserDbContextBase ctx, Guid userId)
+        //public static IEnumerable<UserToUserConsent> GetUserConsentsByUserId(this AcUserDbContextBase ctx, Guid userId)
         //    => ctx.UserToUserConsents.Where(u => u.UserId == userId);
 
-        //public static bool IsUserConsentsAccepted(this UserDbContextBase ctx, Guid userId)
+        //public static bool IsUserConsentsAccepted(this AcUserDbContextBase ctx, Guid userId)
         //    => ctx.GetUserConsentsByUserId(userId).Count(x => x.IsAccepted) == AcConst.ConsentCount;
 
-        //public static bool SetUserConsentsToAccepted(this UserDbContextBase ctx, Guid userId)
+        //public static bool SetUserConsentsToAccepted(this AcUserDbContextBase ctx, Guid userId)
         //{
         //    var user = ctx.GetUserById(userId);
         //    return ctx.SetUserConsentsToAccepted(user);
         //}
 
-        //public static bool SetUserConsentsToAccepted(this UserDbContextBase ctx, IUserBase? user)
+        //public static bool SetUserConsentsToAccepted(this AcUserDbContextBase ctx, IUserBase? user)
         //{
         //    if (!user.EmailConfirmed) return false; //Ez nem kéne ide... - J.
 
@@ -80,73 +69,7 @@ namespace AyCode.Database.DataLayers.Users
         //}
 
 
-        public static bool ChangePassword<TUser, TUserToken>(this IUserDbContextBase<TUser, TUserToken> ctx, TUser? user, string passwordHash, string verificationToken) 
-            where TUser : class, IUserBase
-            where TUserToken : class, IUserTokenBase
-        {
-            if (user == null || !ctx.IsValidToken(user.Id, verificationToken)) return false;
 
-            user.Password = passwordHash;
-            ctx.Users.Update(user);
-
-            ctx.DeactivateTokens(user.Id);
-
-            return true;
-        }
-
-        public static TUserToken? UpdateUserTokenSent<TUserToken>(this IUserTokenDbSet<TUserToken> ctx, Guid userId, string verificationToken, DateTime tokenSentUtc) where TUserToken : class, IUserTokenBase
-        {
-            var userToken = ctx.GetUserToken(userId, verificationToken);
-
-            if (userToken == null) return null;
-
-            userToken.TokenSent = tokenSentUtc;
-            userToken.TokenExpiration ??= tokenSentUtc.AddDays(1);
-
-            var utcNow = DateTime.UtcNow;
-            userToken.IsActive = tokenSentUtc <= utcNow && userToken.TokenExpiration > utcNow;
-
-            ctx.UserTokens.Update(userToken);
-            return userToken;
-        }
-
-        public static TUserToken CreateUserToken<TUserToken>(this IUserTokenDbSet<TUserToken> ctx, Guid userId, string verificationToken) where TUserToken : class, IUserTokenBase
-        {
-            var userToken = Activator.CreateInstance<TUserToken>();
-            userToken.UserId = userId;
-            userToken.Token = verificationToken;
-
-            return ctx.CreateUserToken(userToken);
-        }
-
-        public static TUserToken CreateUserToken<TUserToken>(this IUserTokenDbSet<TUserToken> ctx, TUserToken userToken) where TUserToken : class, IUserTokenBase
-        {
-            ctx.DeactivateTokens(userToken.UserId);
-
-            userToken.IsActive = true;
-            ctx.UserTokens.Add(userToken);
-
-            return userToken;
-        }
-
-        public static TUserToken? GetActiveUserToken<TUserToken>(this IUserTokenDbSet<TUserToken> ctx, Guid userId) where TUserToken : class, IUserTokenBase
-            => ctx.UserTokens.SingleOrDefault(x => x.UserId == userId && x.IsActive && (x.TokenExpiration == null || x.TokenExpiration > DateTime.UtcNow));
-
-        public static TUserToken? GetUserToken<TUserToken>(this IUserTokenDbSet<TUserToken> ctx, Guid userId, string verificationToken) where TUserToken : class?, IUserTokenBase?
-            => ctx.UserTokens.SingleOrDefault(x => x.UserId == userId && x.Token == verificationToken);
-
-        public static bool IsValidToken<TUserToken>(this IUserTokenDbSet<TUserToken> ctx, Guid userId, string verificationToken) where TUserToken : class, IUserTokenBase
-            => ctx.UserTokens.Any(x => x.UserId == userId && x.IsActive && x.Token == verificationToken && x.TokenExpiration > DateTime.UtcNow && x.TokenSent < DateTime.UtcNow);
-
-        public static void DeactivateTokens<TUserToken>(this IUserTokenDbSet<TUserToken> ctx, Guid userId) where TUserToken : class, IUserTokenBase
-        {
-            var activeUserTokens = ctx.UserTokens.Where(x => x.UserId == userId && x.IsActive);
-
-            foreach (var activeUserToken in activeUserTokens)
-                activeUserToken.IsActive = false;
-
-            ctx.UserTokens.UpdateRange(activeUserTokens);
-        }
 
         ////public static void GetUserDetails(this IUserDal userDal, Guid userId, Action<AspNetUser> callback) 
         ////    => callback(userDal.Get<AspNetUser>(userId));
diff --git a/AyCode.Database/DbContexts/DbContextBase.cs b/AyCode.Database/DbContexts/AcDbContextBase.cs
similarity index 94%
rename from AyCode.Database/DbContexts/DbContextBase.cs
rename to AyCode.Database/DbContexts/AcDbContextBase.cs
index 4915eb0..ddf4afd 100644
--- a/AyCode.Database/DbContexts/DbContextBase.cs
+++ b/AyCode.Database/DbContexts/AcDbContextBase.cs
@@ -5,23 +5,23 @@ using AyCode.Interfaces.TimeStampInfo;
 
 namespace AyCode.Database.DbContexts;
 
-public class DbContextBase : DbContext
+public class AcDbContextBase : DbContext
 {
     public string Name { get; set; }
 
     public Guid SessionId { get; protected set; } = Guid.NewGuid();
 
-    public DbContextBase()
+    public AcDbContextBase()
     {
         //DbInterception.Add(new UtcDateTimeDbCommandInterceptor());
     }
 
-    public DbContextBase(string name) : this()
+    public AcDbContextBase(string name) : this()
     {
         Name = name;
     }
 
-    public DbContextBase(DbContextOptions<DbContext> options, string name) : base(options)
+    public AcDbContextBase(DbContextOptions<DbContext> options, string name) : base(options)
     {
         Name = name;
     }
diff --git a/AyCode.Database/DbContexts/Users/UserDbContextBase.cs b/AyCode.Database/DbContexts/Users/AcUserDbContextBase.cs
similarity index 78%
rename from AyCode.Database/DbContexts/Users/UserDbContextBase.cs
rename to AyCode.Database/DbContexts/Users/AcUserDbContextBase.cs
index 5e596cf..2b20536 100644
--- a/AyCode.Database/DbContexts/Users/UserDbContextBase.cs
+++ b/AyCode.Database/DbContexts/Users/AcUserDbContextBase.cs
@@ -8,7 +8,7 @@ using Microsoft.EntityFrameworkCore;
 
 namespace AyCode.Database.DbContexts.Users
 {
-    public abstract class UserDbContextBase<TUser, TUserToken> : DbContextBase, IUserDbContextBase<TUser, TUserToken> 
+    public abstract class AcUserDbContextBase<TUser, TUserToken> : AcDbContextBase, IAcUserDbContextBase<TUser, TUserToken> 
         where TUser : class, IUserBase 
         where TUserToken : class, IUserTokenBase
     {
diff --git a/AyCode.Database/DbContexts/Users/IAcUserDbContextBase.cs b/AyCode.Database/DbContexts/Users/IAcUserDbContextBase.cs
new file mode 100644
index 0000000..ada2210
--- /dev/null
+++ b/AyCode.Database/DbContexts/Users/IAcUserDbContextBase.cs
@@ -0,0 +1,9 @@
+using AyCode.Database.DbSets.Users;
+using AyCode.Interfaces.Users;
+using Microsoft.EntityFrameworkCore;
+
+namespace AyCode.Database.DbContexts.Users;
+
+public interface IAcUserDbContextBase<TUser, TUserToken> : IAcUserDbSet<TUser>, IAcUserTokenDbSet<TUserToken> where TUser : class, IUserBase where TUserToken : class, IUserTokenBase
+{
+}
\ No newline at end of file
diff --git a/AyCode.Database/DbContexts/Users/IUserTokenDbContextBase.cs b/AyCode.Database/DbContexts/Users/IAcUserTokenDbContextBase.cs
similarity index 63%
rename from AyCode.Database/DbContexts/Users/IUserTokenDbContextBase.cs
rename to AyCode.Database/DbContexts/Users/IAcUserTokenDbContextBase.cs
index 1d9bde6..af10621 100644
--- a/AyCode.Database/DbContexts/Users/IUserTokenDbContextBase.cs
+++ b/AyCode.Database/DbContexts/Users/IAcUserTokenDbContextBase.cs
@@ -3,7 +3,7 @@ using Microsoft.EntityFrameworkCore;
 
 namespace AyCode.Database.DbContexts.Users;
 
-public interface IUserTokenDbContextBase<TUserToken> where TUserToken : class, IUserTokenBase
+public interface IAcUserTokenDbContextBase<TUserToken> where TUserToken : class, IUserTokenBase
 {
     DbSet<TUserToken> UserToken { get; set; }
 }
\ No newline at end of file
diff --git a/AyCode.Database/DbContexts/Users/IUserDbContextBase.cs b/AyCode.Database/DbContexts/Users/IUserDbContextBase.cs
deleted file mode 100644
index fb29b3c..0000000
--- a/AyCode.Database/DbContexts/Users/IUserDbContextBase.cs
+++ /dev/null
@@ -1,9 +0,0 @@
-using AyCode.Database.DbSets.Users;
-using AyCode.Interfaces.Users;
-using Microsoft.EntityFrameworkCore;
-
-namespace AyCode.Database.DbContexts.Users;
-
-public interface IUserDbContextBase<TUser, TUserToken> : IUserDbSet<TUser>, IUserTokenDbSet<TUserToken> where TUser : class, IUserBase where TUserToken : class, IUserTokenBase
-{
-}
\ No newline at end of file
diff --git a/AyCode.Database/DbSets/Base/IDbSetBase.cs b/AyCode.Database/DbSets/Base/IDbSetBase.cs
new file mode 100644
index 0000000..bd4fea8
--- /dev/null
+++ b/AyCode.Database/DbSets/Base/IDbSetBase.cs
@@ -0,0 +1,24 @@
+using AyCode.Interfaces.Entities;
+using Microsoft.EntityFrameworkCore;
+
+namespace AyCode.Database.DbSets.Base;
+
+public interface IDbSetGuidBase<TEntity> where TEntity : class, IEntityGuid
+{
+    DbSet<TEntity> Users { get; set; }
+}
+
+public interface IDbSetIntBase<TEntity> where TEntity : class, IEntityInt
+{
+    DbSet<TEntity> Users { get; set; }
+}
+
+public interface IDbSetBase<TEntity, TPkey> where TEntity : class, IEntity<TPkey>
+{
+    DbSet<TEntity> Users { get; set; }
+}
+
+public interface IDbSetBase<TEntity> where TEntity : class, IEntity
+{
+    DbSet<TEntity> Users { get; set; }
+}
\ No newline at end of file
diff --git a/AyCode.Database/DbSets/Users/AcUserDbSetExtensions.cs b/AyCode.Database/DbSets/Users/AcUserDbSetExtensions.cs
new file mode 100644
index 0000000..8910c9b
--- /dev/null
+++ b/AyCode.Database/DbSets/Users/AcUserDbSetExtensions.cs
@@ -0,0 +1,17 @@
+using AyCode.Interfaces.Users;
+
+namespace AyCode.Database.DbSets.Users;
+
+public static class AcUserDbSetExtensions
+{
+    public static TUser? GetUserById<TUser>(this IAcUserDbSet<TUser> ctx, Guid userId) where TUser : class, IUserBase
+    {
+        return ctx.Users.FirstOrDefault(u => u.Id == userId);
+    }
+
+    public static TUser? GetUserByEmail<TUser>(this IAcUserDbSet<TUser> ctx, string email) where TUser : class, IUserBase
+    {
+        var emailLower = email.ToLower();
+        return ctx.Users.FirstOrDefault(u => u.EmailAddress == emailLower);
+    }
+}
\ No newline at end of file
diff --git a/AyCode.Database/DbSets/Users/AcUserTokenDbSetExtensions.cs b/AyCode.Database/DbSets/Users/AcUserTokenDbSetExtensions.cs
new file mode 100644
index 0000000..81d31aa
--- /dev/null
+++ b/AyCode.Database/DbSets/Users/AcUserTokenDbSetExtensions.cs
@@ -0,0 +1,75 @@
+using AyCode.Database.DbContexts.Users;
+using AyCode.Interfaces.Users;
+
+namespace AyCode.Database.DbSets.Users;
+
+public static class AcUserTokenDbSetExtensions
+{
+    public static bool ChangePassword<TUser, TUserToken>(this IAcUserDbContextBase<TUser, TUserToken> ctx, TUser? user, string passwordHash, string verificationToken)
+        where TUser : class, IUserBase
+        where TUserToken : class, IUserTokenBase
+    {
+        if (user == null || !ctx.IsValidToken(user.Id, verificationToken)) return false;
+
+        user.Password = passwordHash;
+        ctx.Users.Update(user);
+
+        ctx.DeactivateTokens(user.Id);
+
+        return true;
+    }
+
+    public static TUserToken? UpdateUserTokenSent<TUserToken>(this IAcUserTokenDbSet<TUserToken> ctx, Guid userId, string verificationToken, DateTime tokenSentUtc) where TUserToken : class, IUserTokenBase
+    {
+        var userToken = ctx.GetUserToken(userId, verificationToken);
+
+        if (userToken == null) return null;
+
+        userToken.TokenSent = tokenSentUtc;
+        userToken.TokenExpiration ??= tokenSentUtc.AddDays(1);
+
+        var utcNow = DateTime.UtcNow;
+        userToken.IsActive = tokenSentUtc <= utcNow && userToken.TokenExpiration > utcNow;
+
+        ctx.UserTokens.Update(userToken);
+        return userToken;
+    }
+
+    public static TUserToken CreateUserToken<TUserToken>(this IAcUserTokenDbSet<TUserToken> ctx, Guid userId, string verificationToken) where TUserToken : class, IUserTokenBase
+    {
+        var userToken = Activator.CreateInstance<TUserToken>();
+        userToken.UserId = userId;
+        userToken.Token = verificationToken;
+
+        return ctx.CreateUserToken(userToken);
+    }
+
+    public static TUserToken CreateUserToken<TUserToken>(this IAcUserTokenDbSet<TUserToken> ctx, TUserToken userToken) where TUserToken : class, IUserTokenBase
+    {
+        ctx.DeactivateTokens(userToken.UserId);
+
+        userToken.IsActive = true;
+        ctx.UserTokens.Add(userToken);
+
+        return userToken;
+    }
+
+    public static TUserToken? GetActiveUserToken<TUserToken>(this IAcUserTokenDbSet<TUserToken> ctx, Guid userId) where TUserToken : class, IUserTokenBase
+        => ctx.UserTokens.SingleOrDefault(x => x.UserId == userId && x.IsActive && (x.TokenExpiration == null || x.TokenExpiration > DateTime.UtcNow));
+
+    public static TUserToken? GetUserToken<TUserToken>(this IAcUserTokenDbSet<TUserToken> ctx, Guid userId, string verificationToken) where TUserToken : class?, IUserTokenBase?
+        => ctx.UserTokens.SingleOrDefault(x => x.UserId == userId && x.Token == verificationToken);
+
+    public static bool IsValidToken<TUserToken>(this IAcUserTokenDbSet<TUserToken> ctx, Guid userId, string verificationToken) where TUserToken : class, IUserTokenBase
+        => ctx.UserTokens.Any(x => x.UserId == userId && x.IsActive && x.Token == verificationToken && x.TokenExpiration > DateTime.UtcNow && x.TokenSent < DateTime.UtcNow);
+
+    public static void DeactivateTokens<TUserToken>(this IAcUserTokenDbSet<TUserToken> ctx, Guid userId) where TUserToken : class, IUserTokenBase
+    {
+        var activeUserTokens = ctx.UserTokens.Where(x => x.UserId == userId && x.IsActive);
+
+        foreach (var activeUserToken in activeUserTokens)
+            activeUserToken.IsActive = false;
+
+        ctx.UserTokens.UpdateRange(activeUserTokens);
+    }
+}
\ No newline at end of file
diff --git a/AyCode.Database/DbSets/Users/IUserDbSet.cs b/AyCode.Database/DbSets/Users/IAcUserDbSet.cs
similarity index 73%
rename from AyCode.Database/DbSets/Users/IUserDbSet.cs
rename to AyCode.Database/DbSets/Users/IAcUserDbSet.cs
index ef7fd12..192e63a 100644
--- a/AyCode.Database/DbSets/Users/IUserDbSet.cs
+++ b/AyCode.Database/DbSets/Users/IAcUserDbSet.cs
@@ -4,7 +4,7 @@ using Microsoft.EntityFrameworkCore;
 
 namespace AyCode.Database.DbSets.Users;
 
-public interface IUserDbSet<TUser> where TUser : class, IUserBase
+public interface IAcUserDbSet<TUser> where TUser : class, IUserBase
 {
     DbSet<TUser> Users { get; set; }
 }
\ No newline at end of file
diff --git a/AyCode.Database/DbSets/Users/IUserTokenDbSet.cs b/AyCode.Database/DbSets/Users/IAcUserTokenDbSet.cs
similarity index 64%
rename from AyCode.Database/DbSets/Users/IUserTokenDbSet.cs
rename to AyCode.Database/DbSets/Users/IAcUserTokenDbSet.cs
index 35118c1..80e4d90 100644
--- a/AyCode.Database/DbSets/Users/IUserTokenDbSet.cs
+++ b/AyCode.Database/DbSets/Users/IAcUserTokenDbSet.cs
@@ -3,7 +3,7 @@ using Microsoft.EntityFrameworkCore;
 
 namespace AyCode.Database.DbSets.Users;
 
-public interface IUserTokenDbSet<TUserToken> where TUserToken : class, IUserTokenBase
+public interface IAcUserTokenDbSet<TUserToken> where TUserToken : class, IUserTokenBase
 {
     DbSet<TUserToken> UserTokens { get; set; }
 }
\ No newline at end of file
diff --git a/AyCode.Database/Extensions/AcDalExtension.cs b/AyCode.Database/Extensions/AcDalExtension.cs
new file mode 100644
index 0000000..f5bd1ec
--- /dev/null
+++ b/AyCode.Database/Extensions/AcDalExtension.cs
@@ -0,0 +1,39 @@
+using AyCode.Core.Helpers;
+using AyCode.Database.DataLayers;
+using AyCode.Database.DbContexts;
+using AyCode.Interfaces.Entities;
+
+namespace AyCode.Database.Extensions;
+
+public static class AcDalExtension
+{
+    public static Task<TResultType> SessionAsync<TDbContext, TResultType>(this IAcDalBase<TDbContext> acDal, Func<TDbContext, TResultType> callback) where TDbContext : AcDbContextBase
+        => TaskHelper.ToThreadPoolTask(() => acDal.Session(callback));
+
+    public static Task<IEnumerable<TEntity>> SessionAsync<TDbContext, TEntity>(this IAcDalBase<TDbContext> acDal, Func<TDbContext, IQueryable<TEntity>> callback) where TEntity : IEntity where TDbContext : AcDbContextBase
+        => TaskHelper.ToThreadPoolTask(() => acDal.Session(callback));
+
+    public static TResultType Session<TDbContext, TResultType>(this IAcDalBase<TDbContext> acDal, Func<TDbContext, TResultType> callback) where TDbContext : AcDbContextBase
+    {
+        using var ctx = acDal.CreateDbContext();
+        
+        return ctx.Session(callback);
+    }
+
+    public static IEnumerable<TEntity> Session<TDbContext, TEntity>(this IAcDalBase<TDbContext> acDal, Func<TDbContext, IQueryable<TEntity>> callback) where TEntity : IEntity where TDbContext : AcDbContextBase
+    {
+        using var ctx = acDal.CreateDbContext();
+        
+        return ctx.Session(callback);
+    }
+
+    public static Task<bool> TransactionAsync<TDbContext>(this IAcDalBase<TDbContext> acDal, Func<TDbContext, bool> callbackTransactionBody, bool throwException = false) where TDbContext : AcDbContextBase
+        => TaskHelper.ToThreadPoolTask(() => acDal.Transaction(callbackTransactionBody, throwException));
+
+    public static bool Transaction<TDbContext>(this IAcDalBase<TDbContext> acDal, Func<TDbContext, bool> callbackTransactionBody, bool throwException = false) where TDbContext : AcDbContextBase
+    {
+        using var ctx = acDal.CreateDbContext();
+        
+        return ctx.Transaction(callbackTransactionBody, throwException);
+    }
+}
\ No newline at end of file
diff --git a/AyCode.Database/Extensions/DbContextExtension.cs b/AyCode.Database/Extensions/AcDbContextExtension.cs
similarity index 98%
rename from AyCode.Database/Extensions/DbContextExtension.cs
rename to AyCode.Database/Extensions/AcDbContextExtension.cs
index 92cca64..7f772bb 100644
--- a/AyCode.Database/Extensions/DbContextExtension.cs
+++ b/AyCode.Database/Extensions/AcDbContextExtension.cs
@@ -13,7 +13,7 @@ using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
 
 namespace AyCode.Database.Extensions
 {
-       public static class DbContextExtension
+       public static class AcDbContextExtension
     {
 
         public static IEntityType? GetEntityType<TEntity>(this DbContext ctx)
diff --git a/AyCode.Database/Extensions/DbSessionExtension.cs b/AyCode.Database/Extensions/AcDbSessionExtension.cs
similarity index 87%
rename from AyCode.Database/Extensions/DbSessionExtension.cs
rename to AyCode.Database/Extensions/AcDbSessionExtension.cs
index cc23631..411508c 100644
--- a/AyCode.Database/Extensions/DbSessionExtension.cs
+++ b/AyCode.Database/Extensions/AcDbSessionExtension.cs
@@ -6,12 +6,12 @@ using AyCode.Interfaces.Entities;
 
 namespace AyCode.Database.Extensions;
 
-public static class DbSessionExtension
+public static class AcDbSessionExtension
 {
-    public static Task<TResultType> SessionAsync<TDbContext, TResultType>(this TDbContext ctx, Func<TDbContext, TResultType> callback) where TDbContext : DbContextBase
+    public static Task<TResultType> SessionAsync<TDbContext, TResultType>(this TDbContext ctx, Func<TDbContext, TResultType> callback) where TDbContext : AcDbContextBase
         => TaskHelper.ToThreadPoolTask(() => ctx.Session(callback));
 
-    public static TResultType Session<TDbContext, TResultType>(this TDbContext ctx, Func<TDbContext, TResultType> callback) where TDbContext : DbContextBase
+    public static TResultType Session<TDbContext, TResultType>(this TDbContext ctx, Func<TDbContext, TResultType> callback) where TDbContext : AcDbContextBase
     {
         TResultType result;
 
@@ -33,7 +33,7 @@ public static class DbSessionExtension
 
     public static IEnumerable<TEntity> Session<TDbContext, TEntity>(this TDbContext ctx, Func<TDbContext, IQueryable<TEntity>> callback)
         where TEntity : IEntity
-        where TDbContext : DbContextBase
+        where TDbContext : AcDbContextBase
     {
         foreach (var entity in callback(ctx))
             yield return entity;
diff --git a/AyCode.Database/Extensions/DbTransactionExtension.cs b/AyCode.Database/Extensions/AcDbTransactionExtension.cs
similarity index 89%
rename from AyCode.Database/Extensions/DbTransactionExtension.cs
rename to AyCode.Database/Extensions/AcDbTransactionExtension.cs
index 5c65185..3fd5fa2 100644
--- a/AyCode.Database/Extensions/DbTransactionExtension.cs
+++ b/AyCode.Database/Extensions/AcDbTransactionExtension.cs
@@ -8,13 +8,13 @@ using AyCode.Core.Consts;
 
 namespace AyCode.Database.Extensions;
 
-public static class DbTransactionExtension
+public static class AcDbTransactionExtension
 {
     /// <summary>
     /// BeginTransaction
     /// </summary>
     /// <returns></returns>
-    private static IDbContextTransaction OpenTransaction<TDbContext>(this TDbContext ctx) where TDbContext : DbContextBase
+    private static IDbContextTransaction OpenTransaction<TDbContext>(this TDbContext ctx) where TDbContext : AcDbContextBase
     {
         ctx.Database.AutoTransactionBehavior = AutoTransactionBehavior.Never;
 
@@ -25,7 +25,7 @@ public static class DbTransactionExtension
     /// 
     /// </summary>
     /// <returns>True, ha sikeres volt a Commit.</returns>
-    private static bool CommitTransaction<TDbContext>(this TDbContext ctx, bool throwException = false) where TDbContext : DbContextBase
+    private static bool CommitTransaction<TDbContext>(this TDbContext ctx, bool throwException = false) where TDbContext : AcDbContextBase
     {
         var result = false;
         var transaction = ctx.Database?.CurrentTransaction;
@@ -51,10 +51,10 @@ public static class DbTransactionExtension
         return result;
     }
 
-    public static Task<bool> TransactionAsync<TDbContext>(this TDbContext ctx, Func<TDbContext, bool> callbackTransactionBody, bool throwException = false) where TDbContext : DbContextBase
+    public static Task<bool> TransactionAsync<TDbContext>(this TDbContext ctx, Func<TDbContext, bool> callbackTransactionBody, bool throwException = false) where TDbContext : AcDbContextBase
         => TaskHelper.ToThreadPoolTask(() => ctx.Transaction(callbackTransactionBody, throwException));
 
-    public static bool Transaction<TDbContext>(this TDbContext ctx, Func<TDbContext, bool> callbackTransactionBody, bool throwException = false) where TDbContext : DbContextBase
+    public static bool Transaction<TDbContext>(this TDbContext ctx, Func<TDbContext, bool> callbackTransactionBody, bool throwException = false) where TDbContext : AcDbContextBase
     {
         var result = false;
 
diff --git a/AyCode.Database/Extensions/DalExtension.cs b/AyCode.Database/Extensions/DalExtension.cs
deleted file mode 100644
index 8532f4e..0000000
--- a/AyCode.Database/Extensions/DalExtension.cs
+++ /dev/null
@@ -1,39 +0,0 @@
-using AyCode.Core.Helpers;
-using AyCode.Database.DataLayers;
-using AyCode.Database.DbContexts;
-using AyCode.Interfaces.Entities;
-
-namespace AyCode.Database.Extensions;
-
-public static class DalExtension
-{
-    public static Task<TResultType> SessionAsync<TDbContext, TResultType>(this IDalBase<TDbContext> dal, Func<TDbContext, TResultType> callback) where TDbContext : DbContextBase
-        => TaskHelper.ToThreadPoolTask(() => dal.Session(callback));
-
-    public static Task<IEnumerable<TEntity>> SessionAsync<TDbContext, TEntity>(this IDalBase<TDbContext> dal, Func<TDbContext, IQueryable<TEntity>> callback) where TEntity : IEntity where TDbContext : DbContextBase
-        => TaskHelper.ToThreadPoolTask(() => dal.Session(callback));
-
-    public static TResultType Session<TDbContext, TResultType>(this IDalBase<TDbContext> dal, Func<TDbContext, TResultType> callback) where TDbContext : DbContextBase
-    {
-        using var ctx = dal.CreateDbContext();
-        
-        return ctx.Session(callback);
-    }
-
-    public static IEnumerable<TEntity> Session<TDbContext, TEntity>(this IDalBase<TDbContext> dal, Func<TDbContext, IQueryable<TEntity>> callback) where TEntity : IEntity where TDbContext : DbContextBase
-    {
-        using var ctx = dal.CreateDbContext();
-        
-        return ctx.Session(callback);
-    }
-
-    public static Task<bool> TransactionAsync<TDbContext>(this IDalBase<TDbContext> dal, Func<TDbContext, bool> callbackTransactionBody, bool throwException = false) where TDbContext : DbContextBase
-        => TaskHelper.ToThreadPoolTask(() => dal.Transaction(callbackTransactionBody, throwException));
-
-    public static bool Transaction<TDbContext>(this IDalBase<TDbContext> dal, Func<TDbContext, bool> callbackTransactionBody, bool throwException = false) where TDbContext : DbContextBase
-    {
-        using var ctx = dal.CreateDbContext();
-        
-        return ctx.Transaction(callbackTransactionBody, throwException);
-    }
-}
\ No newline at end of file
diff --git a/AyCode.Entities/Profiles/ProfileBase.cs b/AyCode.Entities/Profiles/ProfileBase.cs
index 5760e1b..1861b1a 100644
--- a/AyCode.Entities/Profiles/ProfileBase.cs
+++ b/AyCode.Entities/Profiles/ProfileBase.cs
@@ -10,10 +10,11 @@ using System.Threading.Tasks;
 namespace AyCode.Entities.Profiles
 {
     [Table("ProfileBase")]
-    public class ProfileBase : IProfileBase 
+    public abstract class ProfileBase : IProfileBase 
     {
-        public ProfileBase() { }
-        public ProfileBase(Guid ownerId) : this()
+        protected ProfileBase() { }
+
+        protected ProfileBase(Guid ownerId) : this()
         {
             OwnerId = ownerId;
         }
diff --git a/AyCode.Entities/Users/UserBase.cs b/AyCode.Entities/Users/UserBase.cs
index 1b23c05..411ed62 100644
--- a/AyCode.Entities/Users/UserBase.cs
+++ b/AyCode.Entities/Users/UserBase.cs
@@ -10,7 +10,7 @@ using AyCode.Interfaces.Users;
 namespace AyCode.Entities.Users
 {
     [Table("Users")]
-    public class UserBase : IUserBase
+    public abstract class UserBase : IUserBase
     {
         [Key, DatabaseGenerated(DatabaseGeneratedOption.None)]
         public Guid Id { get; set; }
@@ -27,24 +27,27 @@ namespace AyCode.Entities.Users
         public DateTime Modified { get; set; }
 
 
-        public UserBase() { }
+        protected UserBase() { }
 
-        public UserBase(string email, string password) : this(Guid.NewGuid(), email, password) { }
-        public UserBase(Guid id, string email, string password) : this()
+        protected UserBase(string email, string password) : this(Guid.NewGuid(), email, password) { }
+
+        protected UserBase(Guid id, string email, string password) : this()
         {
             Id = id;
             EmailAddress = email;           
             Password = password;
         }
 
-        public UserBase(string email, string phoneNumber, string password) : this(Guid.NewGuid(), email, phoneNumber, password) { }
-        public UserBase(Guid id, string email, string phoneNumber, string password) : this(id, email, password)
+        protected UserBase(string email, string phoneNumber, string password) : this(Guid.NewGuid(), email, phoneNumber, password) { }
+
+        protected UserBase(Guid id, string email, string phoneNumber, string password) : this(id, email, password)
         {
             PhoneNumber = phoneNumber;
         }
 
-        public UserBase(string email, string phoneNumber, string password, string refreshToken) : this(Guid.NewGuid(), email, phoneNumber, password, refreshToken) { }
-        public UserBase(Guid id, string email, string phoneNumber, string password, string refreshToken) : this(id, email, phoneNumber, password)
+        protected UserBase(string email, string phoneNumber, string password, string refreshToken) : this(Guid.NewGuid(), email, phoneNumber, password, refreshToken) { }
+
+        protected UserBase(Guid id, string email, string phoneNumber, string password, string refreshToken) : this(id, email, phoneNumber, password)
         {
             RefreshToken = refreshToken;
         }
diff --git a/AyCode.Entities/Users/UserTokenBase.cs b/AyCode.Entities/Users/UserTokenBase.cs
index e34812f..6fd19ff 100644
--- a/AyCode.Entities/Users/UserTokenBase.cs
+++ b/AyCode.Entities/Users/UserTokenBase.cs
@@ -5,7 +5,7 @@ using System.ComponentModel.DataAnnotations;
 namespace AyCode.Entities.Users;
 
 [Table("UserToken")]
-public class UserTokenBase : IUserTokenBase
+public abstract class UserTokenBase : IUserTokenBase
 {
     [Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]
     public int Id { get; set; }
diff --git a/AyCode.Interfaces/Entities/IEntity.cs b/AyCode.Interfaces/Entities/IEntity.cs
index a3170cf..e211572 100644
--- a/AyCode.Interfaces/Entities/IEntity.cs
+++ b/AyCode.Interfaces/Entities/IEntity.cs
@@ -8,9 +8,9 @@ namespace AyCode.Interfaces.Entities
     {
     }
 
-    public interface IEntity<T> : IEntity
+    public interface IEntity<TPKey> : IEntity
     {
-        [Key] T Id { get; set; }
+        [Key] TPKey Id { get; set; }
         //T SetId(T id);
     }
 }