Pg_logical without subscription. Can we log the operations ?

 I am working on a requirement, where I need to log each and every operation on the master db. So I was thinking if I could do with pg_logical by setting my master db as publisher and setting a new db as subscriber and dropping the subscription there after. I am wondering, how to get the operations that a subscription would receive just into logs. Could you guide me on that? Otherwise is there a possibility to receive all the operation without dropping subscription and logging the details and deleting the subscription tables to save space. I am planning to have logs rotated and purging logs every month. Could you please guide me about the possibility of this approach?

Thanks in advance,

Dilshan