First make sure that you are logged into the correct account on Gamewisp (if you have multiple accounts). Then go to the u.muxy.io/dashboard/connections page and click on then click on the "Connect" button on the Gamewisp widget. Accept any Gamewisp prompts presented. This will allow us to receive info from Gamewisp when you receive Gamewisp subs.
Now that we are receiving sub info he next thing that you'll want to do is to make some Gamewisp sub alerts. To do this open your existing sub alerts and in the alert editor change the "Display Condition" dropdown from "Default" (Twitch subs) to "Gamewisp Sub". There are also Display conditions for Gamewisp re-subs as well if you'd like to create an alert for those. To test your Gamewisp subs and re-subs use the beaker/flask icon next to the "Subscriptions" header. Clicking on the flask will bring up a testing interface for subscriptions. To test Gamewisp subs set your "Source" to Gamewisp. The test interface is different from the preview window as the test interface actually simulates different values, sources, etc while the preview window dumbly fires ignoring any conditions. The test interface also requires you to have your alert package URL open in OBS or a browser window.