{
  "payer_name": "Example Payer - synthetic",
  "mandate_reference": "DEMO-MANDATE-0042",
  "creditor_name": "Example Creditor - synthetic",
  "signed_date": "2026-09-30",
  "effective_date": "2026-10-01",
  "account_last_four": "0042",
  "mandate_terms_text": "Mandate terms text explicitly printed in the original synthetic source for reviewer context."
}