test on Nostr: Hello world

{ "id": "107d66153a776e9131db6fd576d60d61bc3238a284a554ccf3b845e5da66c2d2", "pubkey": "972f233aa467bc9804032c0bce0a117daead5473c56c91e811a216bdd08c08cf", "created_at": 1731200525, "kind": 1, "tags": [], "content": "Hello world", "sig": "b64a08c3a5c61e230f866aeed7531d5a266afccb264aef1176284dbb92a0409e3c66b6e40088dcb291bc8a3aa94f70e0717a2157060802a622a570a40989900e" }