ExportAudioReqV2

{
    "startTime": 1700000000000,
    "duration": 60000,
    "sourceObjectId": "123456789012345678",
    "fileName": "audio_extract.flac",
    "sampleRate": 48000,
    "fileStartTimecode": 0,
    "fileEndTimecode": 0,
    "reTranscribe": {
        "switch": false,
        "groupId": "string",
        "language": "string"
    },
    "mediaType": "mma",
    "callbackUrl": "https://my-service.example.com/audio-ready",
    "uuid": "string"
}