kafka一种消息体设计

{
    "topic":"test",
    "rules":[
        {
            "action":"order",
            "msg_type":"create",
            "msg":{
                "forward":"order_create"
            },
            "from_system":"payment",
            "create_time":1620101212
        },
        {
            "action":"order",
            "msg_type":"pay",
            "msg":{
                "forward":"order_pay"
            },
            "from_system":"pay",
            "create_time":1620101212
        },
        {
            "action":"order",
            "msg_type":"cancel",
            "msg":{
                "forward":"order_cancel"
            },
            "from_system":"payment",
            "create_time":1620101212
        }
    ]
}