curl --request GET \
  --url https://matcher.sandbox.lerian.net/v1/reports/contexts/{contextId}/variance \
  --header 'Authorization: Bearer <token>'

{
  "items": [
    {
      "source_id": "<string>",
      "currency": "<string>",
      "fee_type": "<string>",
      "total_expected": "<string>",
      "total_actual": "<string>",
      "net_variance": "<string>",
      "variance_pct": "<string>"
    }
  ],
  "pagination": {
    "nextCursor": "eyJpZCI6IjEyMyJ9",
    "prevCursor": "eyJpZCI6IjEyMiJ9",
    "limit": 20,
    "hasMore": true
  }
}