{
  "entity": "Horse",
  "modifiers": [
    {
      "type": "horse",
      "kind": "skeleton"
    },
    {  
      "type": "riding",
      "entity": "Skeleton",
      "modifiers": [
        {
          "type": "equipment",
          "hand": "DIAMOND_HOE",
          "helmet": "HEADLESS_HORSEMAN_BOSS",
          "chestplate": "SPOOKY_CHESTPLATE",
          "leggings": "SPOOKY_LEGGINGS",
          "feet": "SPOOKY_BOOTS"
        }
      ]
    }  
  ]
}