isEncryptedChannel = false; // data stream is public
pusherKey = "de504dc5763aeef9ff52"; // https://www.bitstamp.net/websocket/
channels = new HashSet<String>();
channels.add("live_trades");
channels.add("order_book");
pusherOpts = new PusherOptions();
pusherOpts.setEncrypted(isEncryptedChannel);
pusherOpts.setActivityTimeout(4 * timeoutInMs); // Keep-alive interval
pusherOpts.setPongTimeout(timeoutInMs); // Response timeout
}