curl --request PUT \
  --url https://api.withampersand.com/v1/projects/{projectIdOrName}/integrations/{integrationId}/object-metadata \
  --header 'Content-Type: application/json' \
  --header 'X-Api-Key: <api-key>' \
  --data '{
  "fields": {
    "Account": [
      {
        "fieldName": "Industry",
        "displayName": "Industry Sector",
        "description": "The industry this account operates in",
        "valueType": "string",
        "required": false,
        "stringOptions": {
          "length": 255,
          "defaultValue": "Technology"
        }
      },
      {
        "fieldName": "Company_Size",
        "displayName": "Company Size",
        "valueType": "string",
        "stringOptions": {
          "values": [
            "Small",
            "Medium",
            "Large",
            "Enterprise"
          ],
          "valuesRestricted": true
        }
      }
    ],
    "Contact": [
      {
        "fieldName": "Seniority_Level",
        "displayName": "Seniority Level",
        "valueType": "string",
        "stringOptions": {
          "values": [
            "Junior",
            "Mid",
            "Senior",
            "Executive"
          ],
          "valuesRestricted": true
        }
      }
    ]
  }
}'