Optional client-managed order id (u64) used to tag an order at post time.
It is scoped to a (marketId, accountId) pair and is not unique on-chain.
Callers can later track or cancel an order by this id instead of the on-chain
order id. Serialized on the wire as a BigInt-style string (e.g. "123n").
Optional client-managed order id (
u64) used to tag an order at post time.It is scoped to a
(marketId, accountId)pair and is not unique on-chain. Callers can later track or cancel an order by this id instead of the on-chain order id. Serialized on the wire as a BigInt-style string (e.g."123n").