[
    {
        "cmd": "GET_BACK_MAC",
        "val": 0,
        "lable": "get_MAC_addr",
        "timeout": 0
    },
    {
        "cmd": "GET_BACK_UUID_SN",
        "val": 0,
        "lable": "get_UUID_SN",
        "timeout": 0
    },
    {
        "cmd": "WRITE_BACK_UUID_SN",
        "val": 0,
        "lable": "write_UUID_SN",
        "timeout": 0
    }
]