Thanks for the quick response.
Yes, I know about token providers.
But to get this, I must change the RulesManager class. By current implementation of RulesManager class, I don't get the category and type of event that triggerd action in action itself (action context).
So I must change implementation od RulesManager and in TriggerEvent method I would pass the category and type of event in tokens of current executing action.
But I don't want to change RulesManager, so my question is, if exist any better solution?