username on Nostr: Hello world

{ "id": "fcf8403cc1a2b194027c51a8e295d783375fbe3c53b4c4160e7831f857655b4e", "pubkey": "79dff8f82963424e0bb02708a22e44b4980893e3a4be0fa3cb60a43b946764e3", "created_at": 1692704845, "kind": 1, "tags": [], "content": "Hello world", "sig": "7f12a971a729d3e1b36402ef68c53dda40cfeafeb78e3a15437ab72e8ecfcedf72a8ae60b7f14c02dd4362917acec9b02f7eefcba7bb5e8094965351593137d0" }