username on Nostr: Hello world

{ "id": "4d2dae948368665e390c423554a2a8204c14012666ed26c217fa27df4e220ec3", "pubkey": "79dff8f82963424e0bb02708a22e44b4980893e3a4be0fa3cb60a43b946764e3", "created_at": 1675586523, "kind": 1, "tags": [], "content": "Hello world", "sig": "d6f4b5a012ada89cfa7f23b9fb44926f0663cf96339f69b9471335d16f8806f0b583c1ac476106ba6c622e4e7faaa8e7bf036b679546305fd0e02df0c9fffae7" }