Digital poster in Shoreditch for O2 is written entirely in code - win a OnePlus 3

Want a OnePlus3? I DO!  Well, alls I hafta do is decipher this code, and I might win one. See, the first person who manages to decipher this message on a digital billboard in Shoreditch, each day as it runs, wins. 

Ad Agency: VCCP

Great! You’ve successfully signed up.

Welcome back! You've successfully signed in.

You've successfully subscribed to AdLand.

Success! Check your email for magic link to sign-in.

Success! Your billing info has been updated.

Your billing was not updated.