https://developers.weixin.qq.com/doc/offiaccount/Custom_Menus/Custom_Menu_Push_Events.html

个性化菜单事件推送，没有MenuID字段了。过年以前还是好的

接收到请求消息，内容：{

  "allFieldsMap": {

    "CreateTime": "1580718678",

    "EventKey": "2-1",

    "Event": "CLICK",

    "ToUserName": "gh_f3dec83c38da",

    "FromUserName": "obxe7wBTlTPkXMVn9UN868dVARLE",

    "MsgType": "event"

  },

  "toUser": "gh_f3dec83c38da",

  "fromUser": "obxe7wBTlTPkXMVn9UN868dVARLE",

  "createTime": 1580718678,

  "msgType": "event",

  "event": "CLICK",

  "eventKey": "2-1",

  "scanCodeInfo": {},

  "sendPicsInfo": {

    "picList": []

  },

  "sendLocationInfo": {},

  "hardWare": {}

}