nostr:nprofile1qqs8d3c64cayj8canmky0jap0c3fekjpzwsthdhx4cthd4my8c5u47spzpmhxue69uhkummnw3ezuamfdejsz9nhwden5te0wfjkccte9ehx7um5wghxyctwvs0gsm2w activate discovery feature for each user