diff --git a/router/handler/onvif/subscription.go b/router/handler/onvif/subscription.go
index b2760d5..b142e32 100644
--- a/router/handler/onvif/subscription.go
+++ b/router/handler/onvif/subscription.go
@@ -12,7 +12,6 @@ import (
 
 func CreateEventSubscription(c *gin.Context) {
 	xaddr := c.Param("xaddr")
-	// FIXME: 把参数变成传入的参数
 	callbackURL := event.AttributedURIType(fmt.Sprintf("%s/subscriptions/callback", config.Conf.App.URL))
 	result, err := conns[xaddr].SubscribeEvents(callbackURL, "PT60S")
 	if err != nil {
@@ -33,9 +32,10 @@ func EventNotifyCallback(c *gin.Context) {
 		return
 	}
 
+	// TODO: handle notifications
 	for _, msg := range envelope.Body.Content.(*event.Notify).NotificationMessage {
 		log.Println(msg.Topic.TopicKinds, msg.Message.Message)
 	}
 
-	c.String(http.StatusOK, "OK")
+	c.JSON(http.StatusOK, gin.H{"message": "OK"})
 }