nostr:npub16rsfuhv9vvn39cmrdg9s9qcq20lfqp4u8w35f8svm30dny345d7qhc2zfj nostr:npub19wl2ehyuc9r76s2wsymsaax5lyz2m7qd0vus7qa6gk4u29lu4raqfxaenr can you sell it ?