So I was playing in one of the carbon freerolls today, there were about 30 people left and I had about the average stack. I'm dealt JJ in midposition, and there is an early raise of 450. Now my stack is right around 4k. What do you suggest here?

Call? I don't like a flat call here.
Raise? How much though?
Shove?

I didn't have any specifc reads on the opponent that would effect my decision here. (Play isn't too great on these freerolls though)