diff --git a/platformapi/jdapi/callback.go b/platformapi/jdapi/callback.go
index a16e4bf3..0442be24 100644
--- a/platformapi/jdapi/callback.go
+++ b/platformapi/jdapi/callback.go
@@ -35,7 +35,7 @@ type CallbackDeliveryStatusMsg struct {
 	Remark              string `json:"remark"`
 	FailType            string `json:"failType"`
 	CreatePin           string `json:"createPin"`
-	OpTime              int64  `json:"opTime"`
+	OpTime              string `json:"opTime"`
 	InputTime           string `json:"inputTime"`
 }
 
@@ -57,14 +57,8 @@ func (a *API) unmarshalData(strData string, msg interface{}) (callbackResponse *
 }
 
 func (a *API) CheckCallbackValidation(values url.Values) (callbackResponse *CallbackResponse) {
-	mapData := make(map[string]interface{})
-	mapData["token"] = values.Get("token")
-	mapData["app_key"] = values.Get("app_key")
-	mapData["timestamp"] = values.Get("timestamp")
-	mapData["format"] = values.Get("format")
+	mapData := utils.URLValues2Map(values)
 	mapData["app_secret"] = a.appSecret
-	mapData["v"] = values.Get("v")
-	mapData[paramJson] = values.Get(paramJson)
 	sign := a.signParams(mapData)
 	if sign != values.Get(signKey) {
 		baseapi.SugarLogger.Infof("Signature is not ok, mine:%v, get:%v", sign, values.Get(signKey))
diff --git a/utils/utils.go b/utils/utils.go
index 6114a1a7..1915ab9e 100644
--- a/utils/utils.go
+++ b/utils/utils.go
@@ -258,6 +258,22 @@ func Params2Map(key1, value1 interface{}, kv ...interface{}) (retVal map[string]
 	return retVal
 }
 
+func URLValues2Map(values url.Values) (retVal map[string]interface{}) {
+	retVal = make(map[string]interface{})
+	for k := range values {
+		retVal[k] = values.Get(k)
+	}
+	return retVal
+}
+
+func Map2URLValues(mapData map[string]interface{}) (retVal url.Values) {
+	retVal = make(url.Values)
+	for k, v := range mapData {
+		retVal.Set(k, fmt.Sprint(v))
+	}
+	return retVal
+}
+
 func GenerateGetURL(baseURL, apiStr string, params map[string]interface{}) string {
 	queryString := ""
 	if params != nil {