{
"filename": "moh-01.wav",
"ordinal-order": 1,
"file-duration-seconds": 45,
"file-size-kilobytes": "351.61 KB",
"created-datetime": "2026-09-01T14:30:00+00:00",
"file-access-url": "https://core1.example.com/ns-api/v2/domains/example.com/moh/1/play?expires=1790000000&signature=Qm9y3Yp0n1kT8w0xR2c4ZbV6fLh5sJd7gA9eN3uWq1M",
"file-script-text": "Hold music, instrumental",
"file-source": "",
"text-to-speech-voice-id": "en-US-Wavenet-C",
"text-to-speech-language": "en-US"
}