curl --request POST \
  --url https://api.multchats.com/v2/integration/webhook/create \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "integrationId": "<string>",
  "url": "<string>",
  "method": "GET",
  "type": "MESSAGE_SENT_AND_RECEIVED",
  "headers": [
    {
      "key": "<string>",
      "value": "<string>"
    }
  ],
  "delayMinutes": 1,
  "transferType": "ALL"
}
'

{
  "success": true,
  "response": {
    "webhook": {
      "id": "<string>",
      "integrationId": "<string>",
      "url": "<string>",
      "method": "<string>",
      "type": "<string>",
      "headers": "<array>",
      "delayMinutes": 123,
      "transferType": "<string>",
      "createdAt": "<string>",
      "updatedAt": "<string>"
    }
  }
}