Setup webhook on paypal so my bubble app can listen when user cancelled subscription on paypal dashboard

My app can accept new subscriptions and cancel subscriptions within the app. However, when a user cancels a subscription on their PayPal. My app won’t know and thus keeping them subscribed on a pro plan.
I need help!

Feel free to shoot me an email [email protected], I’d be happy to help here. We implemented this for a client a while back.

What you are wanting done is well within my area of expertise and I would be glad to help you out on this.
You can reach me on [email protected]
Best Wishes,