What is this?!

Raw JSON

{
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  "pubkey": "d28413712171c33e117d4bd0930ac05b2c51b30eb3021ef8d4f1233f02c90a2b",
  "created_at": 1781020498,
  "tags": [
    [
      "e",
      "000063bb70dc4454306601c930502873996e3ffea88e5f1a438f6411e99f4e19",
      "wss://theforest.nostr1.com/",
      "root",
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  ],
  "content": "What is this?!",
  "sig": "a6a7543addd3730206692f152de359d96cebfde7488ce1342929a4ac12edb6bc21f65acebfe581da2ca1acb499ef2402ae15728dd2b6ff75ef72a851d20f9a4f"
}