Customizing webhook

Hi, I have problem with WebHook, help me, please.

  • My url:
  • Self host: on Ubuntu Server 20.04.2
  • Deployed ghost: from docker container
  • Version 3.42.0
  • Environment production
  • Database mysql
  • Mail SMTP

I want to link the post.published webhook to Telegram via IFTTT. But for this me need the response body to contain the “Value1” field. How can I change the body of a ghost response?