null on Nostr: who

{ "id": "45e7ae8d1de6c1dd823f93f8aa7d306494085487542ecb2c6171dc4dc8fd9782", "pubkey": "f0f57d4a93f8722f8cbd1b332d9e8c0f1c52609770e6134dc892fbc2eef4ef6a", "created_at": 1671496769, "kind": 1, "tags": [], "content": "who", "sig": "86d2004f4165ff715d859efd462d51228684167d6440b12a936b28a83b465f7e1f32e117f9ba1822b60475207e15ac2115408ff4b3b18c05f0c9b77c2e443379" }