Comment by stereo

In case the rows play a role, I have it (OCR'd and manually corrected) as :

bThvW3JKYz16bXpUWDIufkl2OllseC4maV1gMjtVYXNtb2RyZ3czbkQzQDtn ZnRdMVZuZkIqVTJpIGlxa2xubkAoaTRueGdQaGN0YyRjTGN1WGlUbzF5VU5q cz50KmRwZXlncGN0dA==

The == at the end make it look suspiciously like some kind of base64, but no luck.

Edit: updated for s/0/O/

Edit 2: it isn't a simple rotation of a base64 string either. Maybe the == is a red herring.