Subscribe to order book

Hi,
is it possible to subscribe to waves exchange orderbook using ws/wss channel? What I need is an API where I receive current order book and then I’m subscribed to all updates in this order book for specific instrument. (or for all of thme). I have found that I can Subscribe to Confirmed Transactions or Trades but I don’t know how to receive order book snapshot and then how to update it.

Thanks
Stepan