nostr:npub17d6vdgxwtp3zd205paw67dwc7ucstyache2umfvpl7nhahjfl8zs2wv8qz nostr:npub1vpkystedk2lldqlkkyd084tj5e39rpxn7lad6qeq9uka7kfw9jrsqg092y nostr:npub1qf7kpx547y4wg5z0rgksjvq9w7n0ztzsax7yz35tcxx33lv6ggns2njj9d msats is only internal to Lightning protocol.  You can't actually pay an invoice in msats because each invoice represents a state change in the channel which must be a valid BTC on-chain transaction (it's just not broadcast as such until the channel closes).