POST /api/v4/mqtt/subscribe_batch

    Parameters (json):

    Success Response Body (JSON):

    一次性订阅 a, , c 三个主题

    POST /api/v4/mqtt/unsubscribe_batch

    批量取消订阅。

    Success Response Body (JSON):

    Examples:

    1. $ curl -i --basic -u admin:public -X POST "http://localhost:8081/api/v4/mqtt/unsubscribe_batch" -d '[{"topic":"a","qos":1,"clientid":"example"},{"topic":"b","qos":1,"clientid":"example"}]'