Hmm, do you have a sample account enabled/4722 in your LEM console? The rule is looking for a UserEnable event where the EventInfo field contains the phrase "Account Enabled", so I'm thinking maybe the text changed slightly, or for some reason the events aren't visible in LEM.
Look under Monitor > Change Management > User Account Changes if you're triggering a test, it should appear there. Or you can send that filter to nDepth (Gear>send to nDepth) to search historical events.