Removing utf8=✓ from model

I have an API that returns info straight from the database and noticed Rails is storing a utf8 check mark and the authenticity token. What is the best way to handle this?

{"achievements":[{"utf8":"✓","authenticity_token":"XDzrmNqNyt6OfhWpAzu3j7LhMd/sRcr/4oLsPxRMrDY=","achievement":"Big Guns",...