Can I get the text of notifications in a command line script?

There is information which only appears in a notification for an app I'm using (specifically, the open port number in the private internet access app). Super+V will show me the notification from when the app started, so the information has to be laying around somewhere. Anyone know of a way to extract the notification text to use in a script? Some dbus message I can send to get the text perhaps? Some file the desktop stores the notifications in? Or a way to replace the standard notification app with one that could log the info somewhere?