ive collected a few chests up to this point (im level 35)
and i just havn't learned how to open them like i know its keys
but how do you get these keys
Since you are level 35, it is most likely you have level 20-35 chests. These can be opened with silver keys. You can get these sometimes from the web depot for logging in to DBO. Sometimes gold keys too. You can also buy these purple eggs in the token shop (blue T, bottom right hand corner) which will contain one, or maybe more silver keys.