"=" at the end of the given string may mean base64. Base64 decoded, the string looks like binary. Apply binary decoding. Flag!
[https://gchq.github.io/CyberChef/#recipe=From_Base64('A-Za-z0-9%2B/%3D',true)From_Binary('Space')&input=TURFeE1UQXhNREFnTURFeE1ERXdNREFnTURFeE1EQXhNREVnTURBeE1EQXdNREFnTURFeE1EQXhNVEFnTURFeE1ERXhNREFnTURFeE1EQXdNREVnTURFeE1EQXhNVEVnTURBeE1EQXdNREFnTURFeE1ERXdNREVnTURFeE1UQXdNVEVnTURBeE1EQXdNREFnTURFeE1EQXdNVEFnTURFeE1UQXdNVEFnTURFeE1ERXdNREVnTURFeE1URXdNREFnTURFeE1EQXhNREVnTURFeE1ERXhNREFnTURFd01EQXdNVEVnTURFd01UQXhNREFnTURFd01EQXhNVEFnTURFeE1URXdNVEVnTURFeE1UQXdNVEFnTURFeE1ERXhNVEVnTURFeE1EQXdNVEFnTURFeE1ERXhNVEVnTURFeE1EQXdNVEVnTURFeE1ERXhNVEVnTURFeE1UQXdNREFnTURFeE1URXhNREU9](https://gchq.github.io/CyberChef/#recipe=From_Base64('A-Za-z0-9%2B/%3D',true)From_Binary('Space')&input=TURFeE1UQXhNREFnTURFeE1ERXdNREFnTURFeE1EQXhNREVnTURBeE1EQXdNREFnTURFeE1EQXhNVEFnTURFeE1ERXhNREFnTURFeE1EQXdNREVnTURFeE1EQXhNVEVnTURBeE1EQXdNREFnTURFeE1ERXdNREVnTURFeE1UQXdNVEVnTURBeE1EQXdNREFnTURFeE1EQXdNVEFnTURFeE1UQXdNVEFnTURFeE1ERXdNREVnTURFeE1URXdNREFnTURFeE1EQXhNREVnTURFeE1ERXhNREFnTURFd01EQXdNVEVnTURFd01UQXhNREFnTURFd01EQXhNVEFnTURFeE1URXdNVEVnTURFeE1UQXdNVEFnTURFeE1ERXhNVEVnTURFeE1EQXdNVEFnTURFeE1ERXhNVEVnTURFeE1EQXdNVEVnTURFeE1ERXhNVEVnTURFeE1UQXdNREFnTURFeE1URXhNREU9)