What is this about?

原始 JSON

{
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  "id": "7428998d371ae3d29a3bb2e3aafeb99c77957330b1399f3dbadef3e12871cc29",
  "pubkey": "5143c373df1b548a77d79ec74f27255d129b695b522dfb5bf43498ba4b501df9",
  "created_at": 1777225321,
  "tags": [
    [
      "alt",
      "A short note: What is this about?\n\nnostr:nevent1qqswl4u0jkcxlp6c..."
    ]
  ],
  "content": "What is this about?\n\nnostr:nevent1qqswl4u0jkcxlp6cgujt7keshdu7realjv4xrha29ff4xwwxapx2nzgf8prta",
  "sig": "6b4ba45849981101a70c08d19cfc06f808818406ad27a5ff498ad4bb9d3df2b5f0eb6facc1a24a5950166ba29c847089d481e99cce3d3c6e06a85f0e34fa3415"
}