tried, didn't work
but I found that there's 2 values what mean "lifetime earned golden eggs" and "lifetime spent golden eggs" saved as Qword in Others, if you can find these two data you can change the golden eggs you have on your will, it's just A-B=C. And because it's saved as Qword the valve cannot go over 18,446,744,073,709,551,615 (about 18.4Q), once it went over it loop back to 0. I mistaken the amount I had and it was actually about 18.446744070Q, I made a box of 10B golden eggs then the amount looped back to about 6B lul
I just found a site called "@mk2's public utilities for Egg, inc." and there's bunch of tools can be used to analyze your game savedata by enter your game ID which can be found in settings.