{
  "connector_id": "1",
  "type": "opc_ua",
  "name": "plant-a",
  "url": "@server:plant-a",
  "status": "Active",
  "subscription_period_ms": 100,
  "security": {"mode": "None", "policy": "None", "client_certificate_id": null},
  "legacy_opc_server_id": "1"
}