{
    "video_id": "test123",
    "title": "Sample Video",
    "transcript": [
        {"text": "Welcome to our sample video.", "start": 0.0, "duration": 2.5},
        {"text": "This is a test transcript.", "start": 2.5, "duration": 2.0},
        {"text": "Thank you for watching.", "start": 4.5, "duration": 1.5}
    ]
}