{
  "sets":[
    {
      "spinsMin": 1,
      "spinsMax": 4,
      "combos": [{v1}, {v2}, ...],
      "noComboItems": [{item1}, {item2}, ...]
    },
    {
      "spinsMin": 5,
      "spinsMax": 10,
      "combos": [{v1}, {v2}, ...],
      "noComboItems": [{item1}, {item2}, ...]
    }
  ]
}

пример вариантов комбо
{
  "hasCombo": 1,
  "items": "money_bag",
  "weight": 10
}

{
  "hasCombo": 0,
  "weight": 50
}

пример весов для НЕ комбо
{
  "item": "money_bag",
  "weight": 10
}