Cardano knight network

Metadata:

{
  "name": "Cardano knight network",
  "files": [
    {
      "src": "ipfs://QmaQiV2VpSQxtqPTwQ3dDkCtG7SAzyE4GssGyanG2F9m5D",
      "name": "CKN",
      "mediaType": "image/png"
    }
  ],
  "image": "ipfs://QmaQiV2VpSQxtqPTwQ3dDkCtG7SAzyE4GssGyanG2F9m5D",
  "symbol": "CKN",
  "minting": {
    "type": "time-lock-policy",
    "blockchain": "cardano",
    "mintedBeforeSlotNumber": 81769014
  },
  "mediaType": "image/png",
  "tokenType": "token",
  "description": "test",
  "totalSupply": 50000000
}