[
  {
    "content": "minecraft:dirt",
    "amount": {
      "min": 16,
      "max": 128
    },
    "unitWorth": 5,
    "weight": 100
  },
  {
    "content": "entity:zombie",
    "amount": {
      "min": 1,
      "max": 8
    },
    "unitWorth": 120,
    "weight": 300
  }
]