Webhook modifying the request data

Hi, I am facing a problem in setting up webhook. So, webhook is sending modified requests for email_ids with a "+" sign in them. It replaces "+" with a " ". For example, if the user's email is "test+123@gmail.com" then we would receive the webhook with
"test 123@gmail.com" which is not a valid email id and we cannot save it. It was working fine earlier but this issue came up recently.