One listener to multiple topic-subscriptions

I have several Topics (multiple customer) with the same Subscriptions (e.g. AlertService, CRM,...). For every subscription I have an application-service (AlertService, CRM,...) that should handle/process the respective messages appropriately.

So my idea was to have one listener (for every application service) per type of subscription.
Additionally adding a topic with subscriptions (=for provisioning a new customer) should add the subscription to the listeners without restarting.

Is this something feasible and advisable? Or what are more appropriate ways to handle these kind of problems?

Thanks.