diff --git a/AyCode.Core.Server/AyCode.Core.Server.csproj b/AyCode.Core.Server/AyCode.Core.Server.csproj
index 66e6116..a113558 100644
--- a/AyCode.Core.Server/AyCode.Core.Server.csproj
+++ b/AyCode.Core.Server/AyCode.Core.Server.csproj
@@ -6,6 +6,10 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="MessagePack" Version="2.5.140" />
+  </ItemGroup>
+
   <ItemGroup>
     <ProjectReference Include="..\AyCode.Core\AyCode.Core.csproj" />
   </ItemGroup>
diff --git a/AyCode.Core/AyCode.Core.csproj b/AyCode.Core/AyCode.Core.csproj
index 3a34c73..045dbf2 100644
--- a/AyCode.Core/AyCode.Core.csproj
+++ b/AyCode.Core/AyCode.Core.csproj
@@ -11,6 +11,7 @@
   </ItemGroup>
 
   <ItemGroup>
+    <PackageReference Include="MessagePack" Version="2.5.140" />
     <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="8.0.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="8.0.0" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
diff --git a/AyCode.Core/Extensions/SerializeObjectExtensions.cs b/AyCode.Core/Extensions/SerializeObjectExtensions.cs
new file mode 100644
index 0000000..4607b9b
--- /dev/null
+++ b/AyCode.Core/Extensions/SerializeObjectExtensions.cs
@@ -0,0 +1,29 @@
+using AyCode.Core.Interfaces;
+using MessagePack.Resolvers;
+using MessagePack;
+using Newtonsoft.Json;
+
+namespace AyCode.Core.Extensions;
+
+public static class SerializeObjectExtensions
+{
+    private static readonly JsonSerializerSettings Options = new()
+    {
+        ReferenceLoopHandling = ReferenceLoopHandling.Ignore,
+        NullValueHandling = NullValueHandling.Ignore
+    };
+
+
+    public static string ToJson<T>(this T source) where T : class, IAcSerializableToJson => JsonConvert.SerializeObject(source, Options);
+    public static string ToJson<T>(this IQueryable<T> source) where T : class, IAcSerializableToJson => JsonConvert.SerializeObject(source, Options);
+    public static string ToJson<T>(this IEnumerable<T> source) where T : class, IAcSerializableToJson => JsonConvert.SerializeObject(source, Options);
+
+    public static T? JsonTo<T>(this string json) => JsonConvert.DeserializeObject<T>(json, Options);
+
+
+    public static byte[] ToMessagePack(this object message) => MessagePackSerializer.Serialize(message);
+    public static byte[] ToMessagePack(this object message, MessagePackSerializerOptions options) => MessagePackSerializer.Serialize(message, options);
+
+    public static T? MessagePackTo<T>(this byte[] message) => MessagePackSerializer.Deserialize<T>(message);
+    public static T? MessagePackTo<T>(this byte[] message, MessagePackSerializerOptions options) => MessagePackSerializer.Deserialize<T>(message, options);
+}
\ No newline at end of file
diff --git a/AyCode.Core/Extensions/SerializeObjectToJsonExtensions.cs b/AyCode.Core/Extensions/SerializeObjectToJsonExtensions.cs
deleted file mode 100644
index afd90de..0000000
--- a/AyCode.Core/Extensions/SerializeObjectToJsonExtensions.cs
+++ /dev/null
@@ -1,22 +0,0 @@
-using AyCode.Core.Interfaces;
-using Newtonsoft.Json;
-
-namespace AyCode.Core.Extensions;
-
-public static class SerializeObjectToJsonExtensions
-{
-    private static string SerializeObjectToJson<T>(T source)
-    {
-        JsonSerializerSettings options = new()
-        {
-            ReferenceLoopHandling = ReferenceLoopHandling.Ignore,
-            NullValueHandling = NullValueHandling.Ignore
-        };
-
-        return JsonConvert.SerializeObject(source, options);
-    }
-
-    public static string ToJson<T>(this T source) where T : class, IAcSerializableToJson => SerializeObjectToJson(source);
-    public static string ToJson<T>(this IQueryable<T> source) where T : class, IAcSerializableToJson => SerializeObjectToJson(source);
-    public static string ToJson<T>(this IEnumerable<T> source) where T : class, IAcSerializableToJson => SerializeObjectToJson(source);
-}
\ No newline at end of file
diff --git a/AyCode.Services/SignalRs/IAcSignalRHubBase.cs b/AyCode.Services/SignalRs/IAcSignalRHubBase.cs
index 8a0600a..bcd587a 100644
--- a/AyCode.Services/SignalRs/IAcSignalRHubBase.cs
+++ b/AyCode.Services/SignalRs/IAcSignalRHubBase.cs
@@ -6,6 +6,6 @@ public interface IAcSignalRHubClient : IAcSignalRHubBase
 
 public interface IAcSignalRHubBase
 {
-    Task Get(string user, int messageTag);
-    Task Post(string user, int messageTag, object? message);
+    Task Send(string user, int messageTag, object? message);
+    Task MessageReceived(string user, int messageTag, byte[]? message);
 }
\ No newline at end of file