It's a clearsign signature, I believe it needs to be verified with Armory.
In Armory I go to: Tools -> Message Signing/Verification -> "Verify Signed Message Block" tab and paste the whole thing in and it should show as valid. Works for me.
This is not my stake address. But since you're probably just a sig spammer or trying to bump up your post count without reading through all the details you should know that someone else took control of my stake address wallet and already tried impersonating me by using it to sign a message.
This address was used by me in June 2015. It was for a transaction that OgNasty escrowed, where this is the address he had released the funds to since I was the seller. Someone can contact him to see if he can help verify this or not. I'm trying to find other addresses I may have used but I've lost a lot of them. This is one of the older ones I can find and I thought it would be more credible if a DT1 member is able to help verify it's legitimacy of being my address.
Nice that you are trying to confirm your identity to be Master-p.
However; shouldn't you first move all the escrowed coins to a secure private key, before any of the funds go missing...
Well I am working on that now. I figured if this is a keylogger or some sort of malware I should try moving the drives that contained my wallet files and restoring them on another PC. I did not have back ups set up at the time, negligent of me but at the time I was already moving data from my old PC to another and had forgotten to keep a spare back up of the wallets.
Excuse my slow replies due to the 360 second posting restriction for me.