A successful (200) response from the CLOB's POST /order.
status is "live" (resting on the book), "matched" (filled immediately, with
transactions_hashes/trade_ids populated) or "delayed". error_msg is empty
on success. Amounts are fixed-point strings with 6 decimals.
Summary
Functions
Builds a SendOrderResponse from the raw (JSON-decoded) POST /order body.