"New deal done w/Dana White, Lorenzo Fertitta and UFC, I'm a HAPPY man," Henderson wrote.
Henderson thanks his management team, including Malki Kawa, for "staying late on this (business)."
Earlier this week, "Smooth" got into several Twitter arguments over reports of Alvarez entering the UFC and earning over $70,000 for his first fight. Henderson recently was victorious in the main event of a UFC on Fox event, defeating Nate Diaz.
Currently, Henderson does not have a future opponent lined up. Rumors of Alvarez, Strikeforce lightweight champion Gilbert Melendez or the winner of Anthony Pettis/Donald Cerrone have been discussed for Henderson.