Hi Elias, please find here the link/picture to my similar problem/design: https://i.imgur.com/Ea5R6Pp.jpg

One switch came out nice and easy (the left one) but the right one refused to surrender and had to force: it came out together with the metal layer.

Fortunately, both ends (connectors) were relative easy to see:

- the 1 pin it’s a long line of copper (I managed to solder a thin metal wire) and solder the wire to the switch pin

- the 2 pin was completely under the green paint. I used a small and sharp cutter to remove the paint and put a 2mm solder drop to connect the other switch pin

Now the mouse is working great!

I user the E-Switch indicated ahead and it fitted perfectly (although the micro switch was just a little smaller than the ones in the mouse).

Hope it will help!