diff --git a/TIAM.Services/AcSignalRTags.cs b/TIAM.Services/AcSignalRTags.cs
deleted file mode 100644
index 6540239b..00000000
--- a/TIAM.Services/AcSignalRTags.cs
+++ /dev/null
@@ -1,10 +0,0 @@
-using AyCode.Services.SignalRs;
-
-namespace TIAM.Services;
-
-public class SignalRTags : AcSignalRTags
-{
-    public const int GetTransfersAsync = 5;
-    public const int GetPropertiesByOwnerIdAsync = 6;
-    public const int UpdateTransferAsync = 7;
-}
\ No newline at end of file
diff --git a/TIAM.Services/SignalRTags.cs b/TIAM.Services/SignalRTags.cs
new file mode 100644
index 00000000..fb09c24a
--- /dev/null
+++ b/TIAM.Services/SignalRTags.cs
@@ -0,0 +1,15 @@
+using AyCode.Services.SignalRs;
+using TIAM.Entities.Transfers;
+
+namespace TIAM.Services;
+
+public class SignalRTags : AcSignalRTags
+{
+    //[SignalMessageTag(null, typeof(SignalResponseMessage<string>), null, null)]
+    public static readonly int GetTransfersAsync = 5;
+    
+    public static readonly int GetPropertiesByOwnerIdAsync = 6;
+    
+    [SignalMessageTag(typeof(SignalPostJsonDataMessage<Transfer>), typeof(SignalResponseMessage<string>), null, null)]
+    public static readonly int UpdateTransferAsync = 7;
+}
\ No newline at end of file
diff --git a/TIAMWebApp/Server/Services/DevAdminSignalRhub.cs b/TIAMWebApp/Server/Services/DevAdminSignalRhub.cs
index c7bb7926..6a1efa3f 100644
--- a/TIAMWebApp/Server/Services/DevAdminSignalRhub.cs
+++ b/TIAMWebApp/Server/Services/DevAdminSignalRhub.cs
@@ -71,11 +71,12 @@ public class DevAdminSignalRHub(AdminDal adminDal, ServiceProviderAPIController
             }
             else if (messageTag == SignalRTags.UpdateTransferAsync)
             {
-                //var jsonPostData = message!.MessagePackTo<SignalPostJsonDataMessage>().PostData;
+
+                //var jsonPostData = message!.MessagePackTo<SignalPostJsonDataMessage>().PostDataJson;
                 //_logger.DetailConditional($"PostData: [{jsonPostData}]");
                 //var transfer = jsonPostData.JsonTo<Transfer>()!;
 
-                var transfer = message!.MessagePackTo<SignalPostJsonDataMessage>().PostData.JsonTo<Transfer>()!;
+                var transfer = message!.MessagePackTo<SignalPostJsonDataMessage<Transfer>>().PostData;
 
                 await transferDataAPIController.UpdateTransfer(transfer);
                 await ResponseToCaller(messageTag, new SignalResponseMessage<string>(SignalResponseStatus.Success, transfer.ToJson()), requestId);
diff --git a/TIAMWebApp/Shared/Services/AcSignalRClientBase.cs b/TIAMWebApp/Shared/Services/AcSignalRClientBase.cs
index cb5311d1..588ac4b9 100644
--- a/TIAMWebApp/Shared/Services/AcSignalRClientBase.cs
+++ b/TIAMWebApp/Shared/Services/AcSignalRClientBase.cs
@@ -88,8 +88,9 @@ namespace TIAMWebApp.Shared.Application.Services
             Logger.DebugConditional($"Client SendMessageToServerAsync; {nameof(messageTag)}: {messageTag}; {nameof(requestId)}: {requestId};");
 
             await StartConnection();
-            
-            HubConnection.SendAsync(nameof(IAcSignalRHubClient.OnReceiveMessage), messageTag, message?.ToMessagePack(ContractlessStandardResolver.Options), requestId).Forget();
+
+            var msgp = message?.ToMessagePack(ContractlessStandardResolver.Options);
+            HubConnection.SendAsync(nameof(IAcSignalRHubClient.OnReceiveMessage), messageTag, msgp, requestId).Forget();
         }
 
         #region CRUD
@@ -104,9 +105,9 @@ namespace TIAMWebApp.Shared.Application.Services
             => SendMessageToServerAsync(messageTag, null, responseCallback);
 
         public virtual Task<TPostData?> UpdateAsync<TPostData>(int messageTag, TPostData postData) where TPostData : class
-            => SendMessageToServerAsync<TPostData>(messageTag, new SignalPostJsonDataMessage(postData), AcDomain.NextUniqueInt32);
-        public virtual Task UpdateAsync<TPostData>(int messageTag, TPostData postData, Action<ISignalResponseMessage<TPostData?>> responseCallback)
-            => SendMessageToServerAsync(messageTag, new SignalPostJsonDataMessage(postData!), responseCallback);
+            => SendMessageToServerAsync<TPostData>(messageTag, new SignalPostJsonDataMessage<TPostData>(postData), AcDomain.NextUniqueInt32);
+        public virtual Task UpdateAsync<TPostData>(int messageTag, TPostData postData, Action<ISignalResponseMessage<TPostData?>> responseCallback) where TPostData : class
+            => SendMessageToServerAsync(messageTag, new SignalPostJsonDataMessage<TPostData>(postData), responseCallback);
 
         #endregion CRUD