第三方平台配置了授权事件接收url，只能收到这种格式的数据
<xml>
<AppId><![CDATA[xxxxxxxxxxxxxxxxxxx]]></AppId>
<Encrypt><![CDATA[aRFCeeddfaafy4xr7eDSUXm/fDMKLnr0hrIfIy734Blvcsge3JD9uBMNQWZpuLkviziLWEGYCv9HuQm/VdcJ/uOHBqGlwQaNPO4zER2vagw3vukiuydvcaartCztTz3TlX+pMpn6z7gva21gvr4eqR+n9njvggZOWkh6Ir42353gafsg5uugsaNJGJNu+G0thTifSBrWedMIhRrhGhgw3afsvwqtxDDEowp7Jk8keWyuhObHK+aTitjgmLxVqWL3vVjdBaRapdFjRsb2LhZcG6mvC2D4qFCUXvgwe4t32qdnk5j0CgQaDSHbm+XoMmRtcYkYkECHMLttcvwsege14vvedrfw412fetHH6q31n4WMLIfpQGjrg3423sdvcvr5s9wvA==]]></Encrypt>
</xml>
你好，加密内容请开发者解密获取
https://developers.weixin.qq.com/doc/oplatform/Third-party_Platforms/2.0/api/Before_Develop/component_verify_ticket.html
https://developers.weixin.qq.com/doc/oplatform/Third-party_Platforms/2.0/api/Before_Develop/Message_encryption_and_decryption.html