Update customer monitored assets

{
  "success": true,
  "domains": [
    "example.com",
    "new.example.com"
  ],
  "emails": [
    "user@example.com"
  ]
}

{
  "success": false,
  "error": "Request body must be valid JSON"
}

{
  "success": false,
  "error": "Failed to verify org API key"
}

{
  "success": false,
  "error": "Customer not found or does not belong to partner"
}

{
  "success": false,
  "error": "At least one of domains or emails must be provided"
}

{
  "success": false,
  "error": "Failed to update customer assets"
}