diff --git a/platformapi/dingdingapi/callback.go b/platformapi/dingdingapi/callback.go
index 90b9afde..4b5fed97 100644
--- a/platformapi/dingdingapi/callback.go
+++ b/platformapi/dingdingapi/callback.go
@@ -26,6 +26,8 @@ const (
 
 const (
 	KeyMsgSignature = "msg_signature"
+	KeyEventType    = "EventType"
+	KeyUserID       = "UserId"
 	SuccessResponse = "success"
 )