The term Social Media Manager is part of 70,000 searches monthly with an exact match count of 12,000! The average cost per click is approx. $10
This is a real keyword, a popular word, and the buyer can do all kinds of things with it. From a mega site that a social media manager can advertise, to a forum, to the sale of information or for your own site to market your services.
This is the ultimate premium domain and if used correctly will generate the asking price many times over every month.
Category killer names like this have gone for over a million dollars. For now, this name is priced low. The right mind with a vision will grab it and put it to work.