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

{
  "items": [
    {
      "sourceId": "<string>",
      "currency": "<string>",
      "feeScheduleId": "550e8400-e29b-41d4-a716-446655440001",
      "feeScheduleName": "INTERCHANGE",
      "fee_type": "<string>",
      "totalExpected": "<string>",
      "totalActual": "<string>",
      "netVariance": "<string>",
      "variancePct": "<string>"
    }
  ],
  "pagination": {
    "next": "eyJpZCI6IjEyMyIsImRpcmVjdGlvbiI6Im5leHQifQ==",
    "prev": "eyJpZCI6IjEyMiIsImRpcmVjdGlvbiI6InByZXYifQ=="
  }
}