订阅一次，返回多个成功事件，收到重复数据

[myplxdm]

我连接的蓝牙设备有多个services，我依次订阅，不成功订阅下一个，直到成功就不要订阅，日志如下： notify service = xxx nid = aaa onNotifyFailure notify service = xxx nid = aa1 onNotifyFailure notify service = xxx nid = aa2 onNotifyFailure notify service = xx2 nid = bb1 onNotifySuccess onNotifySuccess

我订阅service = xx2 nid = bb1 会回调两个onNotifySuccess，这时收到的消息会重复2个数据，请问如何解决重复成功重复数据？