title: Redis keyspace notifications with StackExchange.Redis
body: <p>I've looking around and I'm unable to find how to perform a subscription to keyspace notifications on Redis using StackExchange.Redis library.</p>
  
  <p>Checking available tests I've found pubsub using channels, but this is more to work like a service bus/queueing rather than subscribing to specific Redis key events.</p>
  
  <p><strong><em>Is it possible to take advantage of this Redis feature using StackExchange.Redis?</em></strong></p>