I would play Kf3 with the idea of playing Kg3 and securing the kingside. The king in the middle can stop 3 pawns. Then I would play a4 and a5, and then start creating weaknesses with your knight threatening the kingside pawns.
I mean, you talk about securing a draw - at first sight it seems to me that White can win this endgame.
HTH.
Here's an interesting endgame I got in one of my bullet games:
What do you think white should do to secure the draw? If Black goes to the queenside, what are you supposed to do? Do you take his kingside pawns and then sacrifice the knight to draw, or is this strategy not feasible?
Thanks for any help.