diff --git a/models/data.go b/models/data.go
index 05de477..3570415 100644
--- a/models/data.go
+++ b/models/data.go
@@ -1,7 +1,7 @@
 package models
 
 type Data struct {
-	Action string `json:"action"`
+	Action string `json:"action,omitempty"`
 	Topic  string `json:"topic"`
 	Data   any    `json:"data"`
 }