Answervivir la buena vida
Translation; to live the life good.
You would actually want to use the command form of vivir, viva which means live not to live and you would want to switch around buena and vida so it would come out good life and not life good because to describe something in Spanish you put the describing word after the word you want to describe.
So for a better Answer,
!viva la vida buen!
living the good life= viviendo la vida buena!