nus on Nostr: Who is "they"?

{ "id": "027e2313ad704268d122f4bcec7791d8d8beed92bc824aae7f747be595b85894", "pubkey": "fc9113c0c6471b6f87eca3b7325213173a839e7d35ff469319f4edeedd1d92e8", "created_at": 1718901774, "kind": 1, "tags": [ [ "proxy", "https://mstdn.social/@nus/112649946696703500", "web" ], [ "e", "d50f081faf473bb86e829799a0246fc33fb4c0511af484282bc6acaf5b268871", "", "root" ], [ "p", "4ae89e633b155fe1a8f58aa37a68704add07d1d388413e358dea9ad0ab69b8f9" ], [ "proxy", "https://mstdn.social/users/nus/statuses/112649946696703500", "activitypub" ], [ "L", "pink.momostr" ], [ "l", "pink.momostr.activitypub:https://mstdn.social/users/nus/statuses/112649946696703500", "pink.momostr" ] ], "content": "Who is \"they\"?", "sig": "f979bbf04b39545f0f4f08b207eba148b92f6e5e31269dff08b7cbc102d9cc06090e129f069dfbe8263c332286e9ab70f551db67a71a9290ac7b226e6888ab5e" }