Update

curl --request PUT \
  --url https://api.app.fleetit.com/v2/integrations/active/{ID}/ \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "integration": 1,
  "enabled": true,
  "data": {}
}'

{
  "id": 87,
  "integration": 1,
  "enabled": true,
  "data": {
    "auth": {
      "api_key": "dummy_api_key",
      "account_token": "dummy_account_token"
    },
    "urls": {},
    "config": {
      "vehicle": "active",
      "entryTypes": {
        "toll": 706773,
        "parking": 706774
      },
      "vehicleStatusIds": [
        194757,
        194759
      ],
      "fetch_vehicles_on_save": true
    },
    "documentation": "https://developer.example.com/reference/getting-started"
  },
  "documentation": "https://help.example.com/s/article/FleetIT-Integration"
}