void-pack-super-server / server / config / grandeconomy-extra / conversion_items.json

{
  "items": [
    {
      "item": "minecraft:command_block",
      "meta": 0,
      "value": 50
    },
    {
      "item": "minecraft:bedrock",
      "meta": 0,
      "value": 30
    }
  ]
}