final WebSocketClientRequest subscribe = clientFactory.newRequest()
.type("subscribe").data(jsonBuilder().startObject()
.field("subscriber", "singleclient")
.field("topic", topic).endObject());
final WebSocketClientRequest publish = clientFactory.newRequest()
.type("publish").data(jsonBuilder().startObject()
.field("message", "Hello World")
.field("topic", topic).endObject());
WebSocketClient client = clientFactory.newClient(getAddressOfNode("1"),