微信公众号发来的消息解密成功，消息处理完成后发送加密信息给微信公众号保错“该公众号提供的服务出现故障，请稍后重试”，发送明文消息正常。

原始内容：

<xml>

<ToUserName><![CDATA[os19ow5gXgKrCZPPB8ro41Lp6WiQ]]></ToUserName>

<FromUserName><![CDATA[gh_eb1a8d2cd8a4]]></FromUserName>

<CreateTime>1588553243</CreateTime>

<MsgType><![CDATA[text]]></MsgType>

<Content><![CDATA[笨笨的机器人暂时无法理解您的请求，请输入【验证码】查看最新验证消息！]]></Content>

<FuncFlag>0</FuncFlag>

</xml>

加密内容：

<xml>

<Encrypt><![CDATA[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]]></Encrypt>

<MsgSignature><![CDATA[fbebfd1e026a7bb1bac05774e5f663accea04d60]]></MsgSignature>

<TimeStamp>1588553243</TimeStamp>

<Nonce><![CDATA[625072188]]></Nonce>

</xml>