Identifying 53-char hash type

Found inside a black box PHP application.

All 53 chars long, for instance:

cyzWXwHXZBPnxtBalFpQiOsBvZ5kmQpWRmW.qhJt17Mayni4Wg7L*

I realize it's a long shot seeing as how it could be anything at all but maybe someone stumbled across something similiar.

Due to board rules about not posting actual hashes, last characters replaced with an asterisk.

Thanks!