{
  "client_device_id": "device-1",
  "device_key_id": "key-1",
  "pool_id": "pool-1",
  "idempotency_key": "request-1",
  "video_profiles": [
    {"codec": "h264", "bit_depth": 8, "chroma_subsampling": "4:2:0", "color_space": "bt709-limited", "transfer_function": "sdr"}
  ],
  "bitrate_preference": {"mode": "auto"}
}