{
  "type": 20,
  "payload": {
    "originalTx": {
      "amount": 5.00,
      "amountAuthorized": 5.00,
      "cardSystem": -1,
      "originalTx": {
        "amount": 5.00,
        "amountAuthorized": 5.00,
        "cardSystem": -1,
        "pan": "400030xxxxxx1000",
        "platform": 0,
        "platformAuthCode": "090915",
        "platformBatchNumber": "173",
        "platformReferenceNumber": "000002549112",
        "platformTxId": "000000002",
        "platformTxType": "Auth only",
        "subtotal": 5.00,
        "svcAmount": 0.00,
        "svcPercent": 0.00,
        "tax": 0.00,
        "taxSvc": 0,
        "tenderType": 0,
        "tips": 0.00,
        "tipsSvc": 0,
        "type": 4
      },
      "pan": "400030xxxxxx1000",
      "platform": 0,
      "platformAuthCode": "090915",
      "platformBatchNumber": "173",
      "platformReferenceNumber": "000002549113",
      "platformTxId": "000000003",
      "platformTxType": "Sale",
      "subtotal": 5.00,
      "svcAmount": 0.00,
      "svcPercent": 0.00,
      "tax": 0.00,
      "taxSvc": 0,
      "tenderType": 0,
      "tips": 0.00,
      "tipsSvc": 0,
      "type": 0
    }
  }
}

Here, the transaction has its own originalTransaction — that is the original Auth transaction before it was captured or had tip adjustment.