minecraft-packets/minecraft-packets/data/pc/1.19.4/from-server/player_info/5.json

An easy way to query PrismarineJS/minecraft-packets

{
  "action": 4,
  "data": [
    {
      "uuid": "3591fdca-95ad-32a5-beb1-2a99402471c2",
      "gamemode": 0
    }
  ]
}