what's aqstr?

Raw JSON

{
  "kind": 1,
  "id": "e6039e8f19571b2b3966e4325d969632cff3c30f5b1272665bd5c6dc487884e3",
  "pubkey": "604e96e099936a104883958b040b47672e0f048c98ac793f37ffe4c720279eb2",
  "created_at": 1787573295,
  "tags": [
    [
      "e",
      "ed31326034ab5374e5963233e7b7fd69dd991c6ef441797ce33f1e9590296954",
      "wss://relay.ditto.pub/",
      "root",
      "604e96e099936a104883958b040b47672e0f048c98ac793f37ffe4c720279eb2"
    ],
    [
      "e",
      "1b172f522698d35134b14afa7be96f681d82e0aa7d1ef7586d52bf54f9d3a2d2",
      "wss://premium.primal.net/",
      "reply",
      "805b34f708837dfb3e7f05815ac5760564628b58d5a0ce839ccbb6ef3620fac3"
    ],
    [
      "p",
      "7fa56f5d6962ab1e3cd424e758c3002b8665f7b0d8dcee9fe9e288d7751ac194"
    ],
    [
      "p",
      "805b34f708837dfb3e7f05815ac5760564628b58d5a0ce839ccbb6ef3620fac3"
    ]
  ],
  "content": "what's aqstr?",
  "sig": "a6e292c1d636e4d2f6cb466533323871fca423cf454ff1f097237a541ba4f807ddb0c224873fd77630642c76413cec55354f45f1fd4f0a3898b92f58b7d36a7e"
}