I found a egg inside the lake I belive it's a snake egg... But how can I take care of it?

First make basket from wooden with fix size (not too big and not too narrow).
Then put some dried leaves in the basket.
After that, put the snake eggs into it (Make sure the temperatur between 25 - 30 °C. And wait until max a month.

Note: Make sure the eggs not shaking. Cause it makes the eggs spoiling.

Thanks..hope can helpfull