Decrypt?

[Saints]

virtual bool ZPSocketConnection::send(ZPSocketRequestMessage_ref &, Z2Error_ref *): [request: req=0, service=auth, command=getAccountInfo, data={"cred":{"_t":"Z2Cred","password":"KIFoGCdrpFm7X6GRKqou3g==","username":"BMW217"}}]
2013-12-25 15:11:04.758 void ZPSocketChannel::sendRawRequestMessage(ZPSocketRequestMessage_ref &): [request: req=6, service=auth, command=getAccountInfo, data={"cred":{"_t":"Z2Cred","password":"KIFoGCdrpFm7X6GRKqou3g==","username":"BMW217"}}]

I'm trying to find out a password. It's on a game called BattleNations. It's for iOs, Android and I'm sure it's coded in C++. I tried online decrypters but none of it came close. I'm also on a Mac so I can't do much.