三方平台在接收到已授权的小程序推送过来的客服消息时，按照要求返回对应加密后的XML

<xml>

    <Encrypt>

        <![CDATA[9PrxDqMdhlduBwynCAbzxfC1dUKOiT2u1GbVAARygjb2LJ4kuHSp8K2a9GpzxTepxuNV/H1ZHAHJeuTkadg/S0+9JD+yAFrcgGyaiyMjQA1Gt7sl1wyMMJFHkm5c1oFYFwu/37/t7YvTIuXy81SMcKXEfuJqzGiaT1Qdz09BmobAli97nZxOq4ZJrdFWgbTH1K1KAlX95ckpfStWhZ5h52pEzfO7KUKzg0oBIHUE1aFaj4TFUVUn+nhualsqEw4528/rvDg14V3sH1nBumgMtfHskS0VPfOKI8PZSj5a0F/NDlG8TQpPmTWJ+Kk1vz+QBrMqbx/JJ1IULWBeZoK2fl8N4XVp+1BAkWPz9P3EiO9sg8jS9tQr6t5z19wySugI]]>

    </Encrypt>

    <MsgSignature>

        <![CDATA[f19c83d562ef6c44a653339c977711754da1856e]]>

    </MsgSignature>

    <TimeStamp>1615445032</TimeStamp>

    <Nonce>

        <![CDATA[fzlkgmnOjlvjsBkr]]>

    </Nonce>

</xml>

明文就是 MsgType 为 transfer_customer_service 的消息

但是无法完成消息转发