curl --request POST \
  --url https://api.vzaps.com/instances/{id}/chat/send/audio \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "phone": "5511999999999",
  "audio": "https://cdn.exemplo.com/midias/audio.mp3",
  "id": "MSG-AUD-001",
  "reply_to_message_id": "3EB020510113BAA6561C"
}
'

{
  "code": 200,
  "success": true,
  "data": {
    "message_id": "90B2F8B13FAC8A9CF6B06E99C7834DC5"
  }
}