curl --request POST \
  --url https://api2.rhombussystems.com/api/integrations/accessControl/updateBoulevardIntegration \
  --header 'Content-Type: application/json' \
  --header 'x-auth-apikey: <api-key>' \
  --header 'x-auth-scheme: <x-auth-scheme>' \
  --data '
{
  "accessWindowAfterMinutes": 123,
  "accessWindowBeforeMinutes": 123,
  "apiToken": "<string>",
  "boulevardBusinessId": "<string>",
  "boulevardLocationToRhombusLocationMap": {},
  "enabled": true
}
'

{
  "authError": false,
  "error": true,
  "errorMsg": "<string>",
  "failedGuids": [
    "<string>"
  ],
  "misconfiguredDoors": [
    "<string>"
  ],
  "warningMsg": "<string>"
}