MergeVideoReq

{
    "user_id": "user@example.com",
    "session_id": "string",
    "source_file_list": [
        {
            "order": 1,
            "bucket": "mma-video-new",
            "region": "us-east-1",
            "video_path": "export/part1.ts"
        }
    ],
    "destination": {
        "bucket": "media-export-bucket",
        "region": "us-east-1",
        "full_path": "merged/final",
        "media_type": "ts"
    }
}