Dogecoin wallet

So guys i found a hint for dogewallet password which is( xMCLFK4Ls4UrndDwxtL2ocBePwnneE+jHOOpti1Ulx+AzCLtxPUv+moU )

How do i know its a hint because it was in a text file and it say dogewallet password hint

i could not figure it out i hash sha256 and nothing interesting there

Anyway try your luck the text file was found on an old PCso probably there is no current owner to the wallet
so try your luck and take the coins though i would love to know how you guys solve it