Boomerman on Nostr: What is this?

{ "id": "2ec8a658b26ffcfbd32a296e1d3e67df72351d5d53c7503a43cdcbd346ad3cf3", "pubkey": "a9605915b9e4b204c6eda0e8165e52865c1f304d92a5c2f9333ab65d9442556f", "created_at": 1683316417, "kind": 1, "tags": [ [ "p", "a26d9180040977fbfa673374da58b057b2be33bd1b2615301969e2d7171a7c42", "wss://relay.mostr.pub" ], [ "e", "20823e20d07d52482765801d993758c36c8b9797304388680cf389f212d9bbc8", "wss://relay.mostr.pub", "reply" ], [ "mostr", "https://poa.st/objects/91191817-c92f-4944-9197-cfb91ae2365a" ] ], "content": "What is this?", "sig": "892b249d521cb6e15feff895e08e891950a84bdad8a78275cbda9624e9458901853f817adfce6e906d4cf56305831720cdf124ecbb518732ff9c42fe6a4fe741" }