What is this?

原始 JSON

{
  "kind": 1,
  "id": "0000004116ec0548e20b83ba4b9c0b29eee16a7d84c75a6cc5ee316d71435277",
  "pubkey": "e4e847f9b3e29e930b3f05218767828f8ddd5ac177f5ad46a6616f52e5c37d6d",
  "created_at": 1788829383,
  "tags": [
    [
      "e",
      "1dba37c29e6d0330f4636df022e86ce378940e127a0b5a6806370b8636a43e5b",
      "wss://podtards.com/",
      "root",
      "f7922a0adb3fa4dda5eecaa62f6f7ee6159f7f55e08036686c68e08382c34788"
    ],
    [
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      "wss://podtards.com/"
    ],
    [
      "client",
      "Amethyst"
    ],
    [
      "nonce",
      "204*xz",
      "24"
    ]
  ],
  "content": "What is this?",
  "sig": "c983f55a60be1f390374cbe4f5eb69f57d300a795e851290f7cfaa901200110fde2e1143e365f2030922a725be85115692f54af530a8c77614f28a1724ac22f2"
}