How do I login into my Jetbrains account via the Intellij IDE in order to use a plugin I just purchased?

Hey there,

I recently purchased a monthly subscription to alter one of the plugins but I can't seem to use it. How do I login into my account via the IDE or is this even possible?

FYI, I activated the purchase/subscription but the plugin section of the IDE tells me that I am still using a 'Freemium' service.