Symfony - Dispatch event and listen in controller when route requested

Question

I don't know if it's a good practice or what ever, but I would like to dispatch an event when an order is created, then I wish catch this event inside a controller to update the order.

I explain:

user is in checkout page then he's redirected to Stripe for the payment. On success/cancel, Stripe will redirect user on subscription_cancel or subscription_success page.

I could add the order id in the url to fetch the order after Stripe redirection. But if I dispatch an event, can I subscribe in subscribtion_cancel/subscription_success method ? With something like $event->getOrder()

With this way, I don't add the order id in the url and it's a bit more secure because the user cannot play with the url. If his order has for id : 10, the url will be subscription/success/14, but with an event, ciao order_id !

But maybe there's a other way to do that without event ?

Thanks for help 👌😊