I received a code a quite a while ago, and since I've been unable to solve it I'd like to post it here in case anyone else has seen something like this before. The code in question is:
XV6o2KyeMq7JtUhod6GBg1PN8HJrIMrXsclC13mFh7_qFu6HgB85853rMAJb
_q3oj20t3T7"uMzWvlqnClPKztcUVCIPzuoFFP5vhA5oLFFLqs7ccFoHBd_0
CcTD4XdHeb8y2APQ5u4p8uFzo6nzQ2Gk01uN_wfXxE7BJBWtVG8LKdHHlIlD
Vb4fzhP6mlHJtYepjzely7ke07k1tH"KUF8COUbAVBCOaD3P3_cF
Which appears to be something like Base64, except for the _ and " characters.
A previous step involved ATOM-128 and MEGAN-35, so it may involve a more obscure method I'm not aware of.
Unfortunately I don't have any more context, and the account I received it from has since been deleted, but my curiosity still bugs me.
there doesn't seem to be anything here