convert binding

app/Providers/BroadcastServiceProvider.php

@@ -19,7 +19,7 @@ class BroadcastServiceProvider extends ServiceProvider
         /*
          * Authenticate the user's personal channel...
          */
-        Broadcast::channel('App.User.*', function ($user, $userId) {
+        Broadcast::channel('App.User.{userId}', function ($user, $userId) {
             return (int) $user->id === (int) $userId;
         });
     }