Using pages as webhooks - how to return a json response

Using pages as webhooks - how to return a json response

Hello, I'm working with an external service that needs to send some data to my Zoho Creator app using a webhook. SO I created a simple page with three variables and published it. Although I'm able to get the webhook data correctly the external service needs the response to be in json format like this {"status":true}. However, what they get is "200 OK".

Is there a way to return a json response when the page has loaded?