Multithreading WPF application, communication with service

Question

Hello, I have WPF application which communicates with WCF service(service is Publisher and WPF application is Subscriber). I need multiple subscriptions to service from one application with callbacks to run in multiple threads. In each thread, application will subscribe to service and on callback(in same thread) save values to DB.

Please can you give me some idea how to solve this?

Thanks