[
  {
    "key": "token",
    "schema": [
      {
        "key": "symbol",
        "type": "[char;4]"
      },
      {
        "key": "total_supply",
        "type": "u64"
      },
      {
        "key": "decimals",
        "type": "u8"
      },
      {
        "key": "initialized",
        "type": "bool"
      }
    ]
  },
  {
    "key": "source",
    "schema": [
      {
        "key": "owner",
        "type": "pub"
      },
      {
        "key": "token",
        "type": "pub"
      },
      {
        "key": "amount",
        "type": "u64"
      },
      {
        "key": "initialized",
        "type": "bool"
      }
    ]
  },
  {
    "key": "destination",
    "schema": [
      {
        "key": "owner",
        "type": "pub"
      },
      {
        "key": "token",
        "type": "pub"
      },
      {
        "key": "amount",
        "type": "u64"
      },
      {
        "key": "initialized",
        "type": "bool"
      }
    ]
  },
  {
    "key": "delegation",
    "schema": [
      {
        "key": "owner",
        "type": "pub"
      },
      {
        "key": "token",
        "type": "pub"
      },
      {
        "key": "source",
        "type": "pub"
      },
      {
        "key": "delegate",
        "type": "pub"
      },
      {
        "key": "amount",
        "type": "u64"
      },
      {
        "key": "initialized",
        "type": "bool"
      }
    ]
  }
]