someone on Nostr: Which client?

{ "id": "391ff0f7764954043e6784024f0adc766b05b4c5c1d05287d1a33e54efe716df", "pubkey": "9fec72d579baaa772af9e71e638b529215721ace6e0f8320725ecbf9f77f85b1", "created_at": 1715364748, "kind": 1, "tags": [ [ "e", "6a8bb7688b77c46c3e66ec4ce146cc3c9a6e1445ddc85c607a79c5914bd837a0", "wss://nostr.thesamecat.io", "root" ], [ "p", "dd664d5e4016433a8cd69f005ae1480804351789b59de5af06276de65633d319" ] ], "content": "Which client?", "sig": "b4b4e94fb2a85b5349773ff8b875fe2c14741642b4adf4d3f8a8acb64f64722860e8ab337b34a269dd0b2e3ec38091db917334ca89fe96f7201f780d8c707eb5" }