{
    "entries" : [
        {
            "t_ms": 500,
            "cmd": ["date"]
        }
        ,{
            "t_ms": 2000,
            "cmd": ["date"]
        }
        ,{
            "t_ms": 3000,
            "cmd": ["ping", "-c", "1", "127.0.0.1"]
        }
        ,{
            "t_ms": 4000,
            "cmd": []
        }
    ]
}