Image of video shows masonic handshake.
Behind that some words reminding on 'Anthony Ashley-Cooper, 7. Earl of Shaftesbury' can be seen.
Maybe a message to the bad guys, saying "serve", as that is the last word?
Also video shows sevedal masonic handshakes with the queen one after another. I would say you can see even the difference of the master and fellow craft….but maybe wrong here