curl --request POST \
  --url https://api.crunchz.app/api/send-message/voice \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "contact_id": "xxx@c.us",
  "audioUrl": "https://github.com/CrunchzApp/asset-example/raw/main/examples/julie-voice.opus",
  "reply_to": "message_id_here"
}'

{
  "success": true,
  "message": "<string>",
  "data": {
    "status": "<string>",
    "message": "<string>",
    "timestamp": "<string>"
  }
}