2023/5/17 8:39:18:

<xml><ToUserName><![CDATA[gh_e9897d3e0999]]></ToUserName>
<FromUserName><![CDATA[oaOcy6eOlXDsiEuCgj-r_v_LS1xM]]></FromUserName>
<CreateTime>1684283845</CreateTime>
<MsgType><![CDATA[event]]></MsgType>
<Event><![CDATA[unsubscribe]]></Event>
<EventKey><![CDATA[]]></EventKey>
</xml>