SQL Notification Firing Erratically

Hello everyone and thanks for your help in advance.  I am wokring on a SignalR application.  Within the hub, I have the following code:

    Private Sub dependency_OnChange(sender As Object, e As SqlNotificationEventArgs)

        Dim nHub As New NotificationHub()

        nHub.SendNotifications()

    End Sub

This works but fires multiple multiple times for any single record operation.  I then tried:

    Private Sub dependency_OnChange(sender As Object, e As SqlNotificationEventArgs)

        If e.Type = SqlNotificationType.Change Then

            Dim nHub As New NotificationHub()

            nHub.SendNotifications()

        End If

    End Sub

However, this causes no notification to be issued.  Upon checking, I found the e.Type was equal to "Subscribe".  I then changed the code to utilize SqlNotificationInfo:

        If e.Info = SqlNotificationInfo.Insert _

        Or e.Info = SqlNotificationInfo.Delete _

        Or e.Info = SqlNotificationInfo.Update Then

                 Dim nHub As New NotificationHub()

                 nHub.SendNotifications()   

        End If

However, this doesn't fire either.  I'm not really sure where to go next.  Any help would be greatly appreciated.