curl --request PATCH \
  --url https://api.tella.com/v1/videos/{id}/clips/{clipId}/layouts/{layoutId} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "durationMs": 123,
  "layout": {
    "kind": "fullscreen"
  },
  "media": {
    "height": 123,
    "imageUrl": "<string>",
    "type": "image",
    "width": 123
  },
  "startTimeMs": 4503599627370495
}
'

{
  "layout": {
    "id": "<string>",
    "durationMs": 5000,
    "layout": {
      "kind": "fullscreen"
    },
    "media": {
      "height": 123,
      "imageUrl": "<string>",
      "type": "image",
      "width": 123
    },
    "startTimeMs": 0
  }
}