diff --git a/Eqn.Sender/Controllers/fbmsController.cs b/Eqn.Sender/Controllers/fbmsController.cs
index 5cd5e49..ffa2a76 100644
--- a/Eqn.Sender/Controllers/fbmsController.cs
+++ b/Eqn.Sender/Controllers/fbmsController.cs
@@ -77,7 +77,7 @@ namespace Eqn.Sender.Controllers
         }
 
         [HttpPost("sendTopic")]
-        public async Task<string> SendTopic([FromBody] MsgPayload rawData)
+        public async Task<string> SendTopic([FromBody] TopicPayload rawData)
         {
             string answ = await DoSendTopic(rawData);
             // restituisco esito...
@@ -345,7 +345,7 @@ namespace Eqn.Sender.Controllers
         /// </summary>
         /// <param name="rawData">Dati payload</param>
         /// <returns></returns>
-        private async Task<string> DoSendTopic(MsgPayload rawData)
+        private async Task<string> DoSendTopic(TopicPayload rawData)
         {
             string answ = "";
             Stopwatch sw = new Stopwatch();
diff --git a/Eqn.Sender/TopicPayload.cs b/Eqn.Sender/TopicPayload.cs
index 1844d24..f2555ad 100644
--- a/Eqn.Sender/TopicPayload.cs
+++ b/Eqn.Sender/TopicPayload.cs
@@ -5,6 +5,7 @@
         #region Public Properties
 
         public string topic { get; set; } = "";
+        public Dictionary<string, string> varData { get; set; } = new Dictionary<string, string>();
         public List<string> tokenList { get; set; } = new List<string>();
 
         #endregion Public Properties