curl -X PATCH 'https://api.example.com/resource-scope-links/rsl_0190a1b2-c3d4-7e5f-8a9b-0c1d2e3f4a5b' \
  -H 'Authorization: Bearer YOUR_TOKEN' \
  -H 'Content-Type: application/json' \
  -d '{
    "metadata": {
      "sharedBy": "user_jane",
      "accessLevel": "read-write",
      "updatedAt": "2024-01-20T10:00:00Z"
    }
  }'

{
  "id": "rsl_0190a1b2-c3d4-7e5f-8a9b-0c1d2e3f4a5b",
  "resourceId": "resource_doc_123",
  "scopeId": "scope_sales",
  "linkType": "share",
  "metadata": {
    "sharedBy": "user_jane",
    "accessLevel": "read-write",
    "updatedAt": "2024-01-20T10:00:00Z"
  },
  "createdAt": "2024-01-15T10:30:00Z"
}