Pass encryption

Anyone know this encryption ?? i didnt find it on hash detector
i think its AES 256
is there anyway to found the KEY ?

user":"

xaNvlHfMJGgZtf6Uo7wZwKcx2PpTTH9W7MXxO1+Okso=

pass":"

8QXB1+33e/4yGbqOFMtJtYOj0yvoQrkVa/hSGvNVuPE=

Revers site/app depend what U are checking

i didnt understanded you