test on Nostr: Hello world

{ "id": "4f7a5bfeb966fb68e9952aae22cb782f0bf6a34bb8bbbd78dccec1e34354a950", "pubkey": "972f233aa467bc9804032c0bce0a117daead5473c56c91e811a216bdd08c08cf", "created_at": 1725914028, "kind": 1, "tags": [], "content": "Hello world", "sig": "1bd4469555c598b6f7992355f0409df35ad349e1724638e528d98adbdb851294105f0a714915396f52a5d1e51a1b3ee5715e770a1bfeb15d86b378691e983264" }