日付メタデータフィールド

{
  "scope": "enterprise",
  "displayName": "Contract",
  "fields": [
    {
      "type": "date",
      "key": "effective_date",
      "displayName": "Effective Date",
      "description": "The effective date when the contract goes in effect",
      "hidden": false
    }
  ]
}

[
  {
    "op": "editField",
    "fieldKey": "effective_date",
    "data": {
      "displayName": "Effective Contract Date",
      "description": "The contract's effective date",
      "key": "effective_contract_date",
      "hidden": true
    }
  }
]