Hi,
Why do you want to capture the data coming on the socket, eventhough it is possible, bu I hardly advice you to scrap the data from the website to avoid any ban from skybet.
bookmakers have many mechanism to detect people scrapping their websites, the slightest error or discrepancy in the headers or the request and they ban you account/ip.
Using cefsharp, I have a big expierience with many bookmakers, live and pregame.
Hope to work for you seoon