resp.txt

deribit:api:ws:test {"id":742,"success":false,"testnet":false,"error":10000,"message":"authorization_required"}

ws.js

import WS from 'ws'

let message =
'{"id":742,"action":"/api/v1/private/subscribe","arguments":{"instrument":["options"],"event":["order_book"]},"sig":"FqvaMjuK7KHU.1531407008281.A1fkudavUyc4MqZue9yQgXd3sljelL0/vmmXBDzzPW8="}'

let ws = new WS('wss://www.deribit.com/ws/api/v1/')

ws.on('open', () => {
  ws.send(message)
})

ws.on('message', debug)