Spring data repositories already creating a listener for expired keys. the listener name is `KeyExpirationEventMessageListener`.

so you can activate it by configuring spring data redis repositories:

```

@EnableRedisRepositories(enableKeyspaceEvents = EnableKeyspaceEvents.ON_STARTUP)

```

and then you listen to the spring event that is emitted by that MessageListener

```

@EventListener

public void listener(RedisKeyExpiredEvent<MyCustomHash> evt) {

if (!(evt.getValue() instanceof MyCustomHash expired)) {

return;

}

log.info("{} ", expired);

}

```