[
  { "pack_id": 10000, "slot": "general", "tier": "bronze",    "rate_pct": 76.5 },
  { "pack_id": 10000, "slot": "general", "tier": "silver",    "rate_pct": 16.0 },
  { "pack_id": 10000, "slot": "general", "tier": "gold",      "rate_pct": 6.0  },
  { "pack_id": 10000, "slot": "general", "tier": "legendary", "rate_pct": 1.5  },
  { "pack_id": 10000, "slot": "eighth",  "tier": "silver",    "rate_pct": 92.5 },
  { "pack_id": 10000, "slot": "eighth",  "tier": "gold",      "rate_pct": 6.0  },
  { "pack_id": 10000, "slot": "eighth",  "tier": "legendary", "rate_pct": 1.5  },
  { "pack_id": 98001, "slot": "bonus",   "tier": "special",   "rate_pct": 100.0 }
]