This quote of Einstein merely proves how human he was because God does play dice with the universe. Well you can say that nobody is playing dice with the universe but things do happen randomly and the quantum level does influence your decisions. Your decisions are basically neurons comunicating with each other via electrical signals and guess what electrical signals and other particle-particle interactions are very random so you can say that free will exists becuase of this. Of course you could say that from the outside of our universe this is all predetermined (if there is an outside) but we are here and we are restricted by the fact that we experimenting inside a system (it would as if you would try to do surgery on yourself)Single Shot said:"As I have said so many times, God doesn't play dice with the world." - Albert Einstein, 1943.
Once you see the universe as nothing more than a massively complex series of natural phenomena you realize that understanding everything happens for a reason doesn't make it any less random or fun when things happened unexpectedly.
TLDR Randomness at the level of electrons does strongly indicate a presence of free will (some things are more probable to happen but you have the possibility of deciding anyway you want to).
Source: I am physicist (well I am studying to be one).