是一个东西么？
你好，可自行查阅文档。
https://developers.weixin.qq.com/miniprogram/dev/framework/open-ability/subscribe-message.html
https://developers.weixin.qq.com/doc/offiaccount/Message_Management/One-time_subscription_info.html
https://developers.weixin.qq.com/doc/oplatform/Mobile_App/One-time_subscription_info.html
