create list and bind remote event receiver.cs

//do not forget to reference officeams.core (http://officeams.codeplex.com) dll to call extension methods. 

//create settingslist
hostWebClientContext.Web.AddList(100, new Guid("00bfea71-de22-43b2-a848-c05709900100"), "Settings", false);

//get settings list
var settingsList = hostWebClientContext.Web.GetListByTitle("Settings");

//prepare eventreceiver binding 
var eventReceivers = settingsList.EventReceivers;
hostWebClientContext.Load(eventReceivers);
hostWebClientContext.ExecuteQuery();

//since this code example is running in a web service class during AppInstalled event, 
//we can get the remoteweb url from the WebOperationContext
//remoteWebUrl will result in: "yourServiceBusName.servicebus.windows.net"
var remoteWebUrl = string.Empty;
if(null != WebOperationContext.Current)
    remoteWebUrl = WebOperationContext.Current.IncomingRequest.Headers["Host"];

//little trick to be able to debug our event receiver
#if DEBUG
    remoteWebUrl = String.Format("https://{0}/3458491647/3050950848/obj/f44563bb-02a0-4a5b-b2da-737023b5a03e", remoteWebUrl);
#endif  


var settingsRerAdded = new EventReceiverDefinitionCreationInformation
{
    ReceiverUrl = String.Format("{0}{1}", remoteWebUrl, "SettingsEvents.svc"),
    ReceiverName = "SettingsEventReceiverAdded",
    Synchronization = EventReceiverSynchronization.Synchronous,
    SequenceNumber = 10000,
    EventType = EventReceiverType.ItemAdded
};

settingsList.EventReceivers.Add(settingsRerAdded);
settingsList.Update();
hostWebClientContext.Load(settingsList.EventReceivers);
hostWebClientContext.ExecuteQuery();