{
  "captions": true,
  "voice": "af_nova",
  "music_url": "https://4ort.live/v1/mtv/video/fca3586f1eeb?download=1",
  "scenes": [
    { "id": "s1", "narration": "Spoken words for scene one..." },
    { "id": "s2", "narration": "Spoken words for scene two..." } ]
}