How to use webhook for checking users are livestreaming and get there data?

% twitch event verify-subscription cheer -F  https://dev.clickitfame.com/twitch/webhook/callback | more
✗ Invalid response. Received <!doctype html>
<html class="theme-light">
<!--
Symfony\Component\HttpKernel\Exception\MethodNotAllowedHttpException: The POST method is not supported for this route. Supported methods: GET, HEAD. in file /home2/clickit9/public_html/oguzhan-clickitfame/vendor/laravel/framework/src/Illuminate/Routing/AbstractRouteCollection.php on line 117

SNIP

 as body, expected 6b4592bb-7dfe-480a-8561-6c76d14e3f8a
✗ Invalid content-type header. Received type text/html with charset UTF-8. Expecting text/plain.
✗ Invalid status code. Received 405, expected a 2XX status

Something isn’t grabbing and processing the POST request correctly.

You can download and use the CLI to test yourself - Twitch CLI | Twitch Developers