I think it's best to use nostr:nprofile1qqspwwwexlwgcrrnwz4zwkze8rq3ncjug8mvgsd96dxx6wzs8ccndmcpp4mhxue69uhkummn9ekx7mqpzfmhxue69uhhyetvv9ujue3h0ghxjmcpzamhxue69uhkummnw3ezuendwsh8w6t69e3xj7sak9fte private message over Nostr.
I think it's best to use nostr:nprofile1qqspwwwexlwgcrrnwz4zwkze8rq3ncjug8mvgsd96dxx6wzs8ccndmcpp4mhxue69uhkummn9ekx7mqpzfmhxue69uhhyetvv9ujue3h0ghxjmcpzamhxue69uhkummnw3ezuendwsh8w6t69e3xj7sak9fte private message over Nostr.