I've installed a web app called `scrumblr` which uses `redis` as a database.

What I am attempting to do is delete all keys that have been inactive for 30 days, or have not been accessed in 30 days.

I ran 

```
redis-cli KEYS*

```

Which returns all of the keys, though it does not show a timestamp.

Is there a script or a command I can run each day at a specific time, which would seek out all the inactive keys and delete them?