add callback api

api-module/src/main/java/com/tzld/piaoquan/api/model/param/wecom/thirdpart/WeComThirdPartyCallBackParam.java

@@ -1,11 +1,10 @@
 package com.tzld.piaoquan.api.model.param.wecom.thirdpart;
 
-import com.alibaba.fastjson.JSONObject;
 import lombok.Data;
 
 @Data
 public class WeComThirdPartyCallBackParam {
     private String uuid;
     private Integer type;
-    private JSONObject json;
+    private String json;
 }