SHA1 of concatenation of the (key (as string) with "258EAFA5-E914-47DA-95CA-C5AB0DC85B11)
SHA1 of concatenation of the (key (as string) with "258EAFA5-E914-47DA-95CA-C5AB0DC85B11)
Confirmation of the server to establish a websocket connection.
SHA1 of concatenation of the (key (as string) with "258EAFA5-E914-47DA-95CA-C5AB0DC85B11)