https://developers.weixin.qq.com/doc/offiaccount/Message_Management/Passive_user_reply_message.html
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<xml>
<ToUserName>
<![CDATA[oBtOS6fsCf2M3v1bW_vQEULXApfAM]]>
</ToUserName>
<FromUserName>
<![CDATA[gh_c0898159fec69]]>
</FromUserName>
<CreateTime>1730361552926</CreateTime>
<MsgType>
<![CDATA[image]]>
</MsgType>
<Image>
<MediaId>
<![CDATA[beVp7ZCY_vOVr111j4DpHdih0HheCUzZXEDaOiC8klYOGhvRmUvDmkZjGmoW6Zt_DOj]]>
</MediaId>
</Image>
</xml>