null on Nostr: 支付方是给relay吗？

{ "id": "813658da41d4561baeeb4376dcdc00918b7dbcb6d7cbe87852d62cc86071b554", "pubkey": "0e30d589f55edf9a696d96be6cf0f1c21077aeea5ddcd7e3ef5d70c9dd0006b7", "created_at": 1675480501, "kind": 1, "tags": [ [ "e", "f79d6eff93a260894b25cf68f765a84d24f66e926265db2e37e80a9c500e57d2" ], [ "e", "dd13e8a78abb832d887d9edd3f80bfa8f9a2df4014b244d81cd4cfbd0a0932f2" ], [ "p", "768652d2b4c1b3dd0bdac9e6c148d326e4bacc706b7ed8c7bfdaf7e38bc91169" ], [ "p", "7cf68b47a2b243d06322bfdb6a1c2422fb8b3a18d18a5c90c27b59e8f612553e" ], [ "p", "f6ff0235be978059aaa2efc90c0214662722320fab959a3ebec6df5b2e49722e" ] ], "content": "支付方是给relay吗？", "sig": "54e259c145bbc96f7f22c54d89c6cd475d4a33f09117f2a5e0b4a30510231e87ab3e11d4114b707d9c5ad0d8ff4c991cb5f7e6c2df7e31e70334bcdf9aa26b2b" }