Folding to get into the money is something I'd definitely consider if I were playing well above my normal levels so that just cashing would mean a major boost to my bankroll. [...........]
you were 5th in the 3+.30 KO
In the end it comes down to table reads. How many hands does this person play, what range, etc etc.
Ultimately the only person who can make that decision is you.
But if you have no information, acknowledge that you are jeopardizing your stack against something that is not a guarantee win, and is possibly a flip.
If you are in it to win, shove.
But shoving without info/reads with a good stack with QQ/JJ usually leads to trouble.