var ws = new WebSocket('ws://localhost:3000/cable'); //current server + '/cable'

ws.send(JSON.stringify({"command":"subscribe","identifier":'{"channel": "BroadcastChannel","channel_name":"6270fce5-5ed8-4234-8736-2e25d59d086f"}'})); // channel_name - UID юзера

table_json = {
  "device_token_name":"helo", // try use what u send on session new as token_name file
  "data_type":"SOCKET_VIEW",
  "tablet_uid":"efe8f483-6b20-45a6-98e1-111a7cf49e89", // TABLET UID
  "status":"INSERT_UPDATE",
  "data": [
    {
      "_description":"",
      "_enabledStatus":0,
      "_id":1,
      "_isAuto":0,
      "_isNormalClose":1,
      "_name":"newr",
      "_operationCode":"4",
      "_operationCodeId":4,
      "_pinId":4,
      "_pinIsInterrupt":1,
      "_pinIsOccupied":1,
      "_pinNumber":03
      }
    ]
  }







ws.send(JSON.stringify({"command":"message","identifier":'{"channel": "BroadcastChannel","channel_name":"6270fce5-5ed8-4234-8736-2e25d59d086f"}',"data":JSON.stringify(table_json.data[0])}));