很多，举个例子
时间：March 22nd 2022, 15:03:08.469
appid wxd111fa6db27dbcce
openid:o7SgMtyK8z_9E5kH4ivYI6UKdcro
扫码关注事件：
<ToUserName><![CDATA[gh_ca4c1b371b2b]]></ToUserName>
<FromUserName><![CDATA[o7SgMtyK8z_9E5kH4ivYI6UKdcro]]></FromUserName>
<CreateTime>1647932588</CreateTime>
<MsgType><![CDATA[event]]></MsgType>
<Event><![CDATA[subscribe]]></Event>
<EventKey><![CDATA[qrscene_3229]]></EventKey>
userinfo 返回信息：
user info : [subscribe:1, openid:o7SgMtyK8z_9E5kH4ivYI6UKdcro, nickname:, sex:0, language:zh_CN, city:, province:, country:, headimgurl:, subscribe_time:1647932588, unionid:o6CHC0zOqArENk209OBP7lLLgX8Y, remark:, groupid:0, tagid_list:[], subscribe_scene:ADD_SCENE_OTHERS, qr_scene:3229, qr_scene_str:]
