{
  "request": {
    "method": "POST",
    "url": "https://api.regal.ai/v1/messages/send",
    "headers": {
      "Authorization": "Bearer YOUR_REGAL_API_KEY",
      "Content-Type": "application/json"
    },
    "body": {
      "channel": "sms",
      "campaignId": 12345,
      "to": { "phoneNumber": "+15551234567" }
    }
  },
  "response": {
    "status": 202,
    "body": {
      "messageId": "msg_01HZX1234567890",
      "status": "queued"
    }
  }
}