Additional fields passed through untyped.
Signed balance change as a decimal string (negative = debit).
Asset code, e.g. "USDT".
Stable record id.
OptionalrefReference back to the originating order/operation.
Settlement time, unix ms.
Ledger entry type, e.g. "REFUND" / "CONVERT".
One settled ledger entry (a row in the refund/conversion history).