[
  {
    "bytes": "32",
    "label": "implementationName",
    "offset": 0,
    "slot": "0",
    "type": "mapping(address => string)"
  },
  {
    "bytes": "32",
    "label": "addressManager",
    "offset": 0,
    "slot": "1",
    "type": "mapping(address => contract AddressManager)"
  }
]