Parse is called on both unsigned and signed transactions to understand the intent of the formulated transaction. This is run as a sanity check before signing (after /construction/payloads) and before broadcast (after /construction/combine).
Body
ConstructionParseRequest is the input to the /construction/parse endpoint. It allows the caller to parse either an unsigned or signed transaction.
signedbooleanRequired
Signed is a boolean indicating whether the transaction is signed.
transactionstringRequired
This must be either the unsigned transaction blob returned by /construction/payloads or the signed transaction blob returned by /construction/combine.