post https://example.com/global/passToMsg.admin.WebhookDubboService.unsubscribe
功能说明：白标自研服务不需要passTo推送信息，取消订阅，后续不再进行推送
Header说明：
version=0.0.1
bizType=passToMsg.admin.WebhookDubboService.unsubscribe
前置条件：
1：需要鉴权
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