username on Nostr: Hello world

{ "id": "5f9266669951ffa9f62c6e3f51c0c7113fc55296b766ea46906c0347ecfa0f70", "pubkey": "79dff8f82963424e0bb02708a22e44b4980893e3a4be0fa3cb60a43b946764e3", "created_at": 1721169588, "kind": 1, "tags": [], "content": "Hello world", "sig": "d165143bbd64263acb08f1bc401cb1654aa6ef6271482f1b67aa9d6a69e67af8a801071ae83daf8fa0a2cf4b10cc468724c56aa4bd5960b0575c8bfbeef7dbe8" }