异步Task响应

{
    "code": "success",
    "message": "",
    "data": {
        "request_id": "string",
        "task_id": "string",
        "action": "VIDEO_GENERATION",
        "status": "SUBMITTING",
        "fail_reason": "string",
        "submit_time": 0,
        "start_time": 0,
        "finish_time": 0,
        "progress": "85%",
        "data": {
            "file_urls": [
                "http://example.com"
            ],
            "progress": 0
        }
    }
}