Webhook

{
  "sendTime": 1553249452973,
  "contact": {
    "id": 100,
    "name": "张三",
    "mobilePhone": "13912341234",
    "email": "zhangsan@example.com",
    "wechatAccounts": [
      {
        "appId": "appid1",  //微信公众账号appid
        "openId": "openId1",  //联系人openid
        "unionId": "unionId1"  //联系人unionId
      },
      {
        "appId": "appid2",
        "openId": "openId2",
        "unionId": "unionId2"
      }
    ],
    "udcAccounts": [
      {
        "externalId": "externId1",  //联系人在自定义渠道的账号
        "channelId": "abc.com",  //自定义渠道连接的channelid
        "channelName": "abc website"  //自定义渠道连接的名称
      }
    ]
  },
  "event": {
    "eventDate": 1553249452973,
    "channelId": "wx123",
    "channelName": "微信mp",
    "event": "WECHAT__SUBSCRIBE",
    "attr1": "XXX",
    "attr2": "XXX",
    "contactId":18257,  
    "id":104298,  
    "items": []
  },
   "_custom": {
    "foo": "bar"
  }
}