/api/v2/internal/{coin}/wallet/{walletId}/withdrawal-offers/cancellableFor each provided transferId, returns whether a cancel withdrawal action can be shown.
Uses POST (rather than GET) to avoid URL length limits when passing many transfer IDs.
A transfer is cancellable when:
confirmedpending_withdrawal_offertransferOfferWithdrawn
and transferOfferId matching the transferIdcoinstringRequiredbtcwalletIdstringRequired59cd72485007a239fb00282ed480da1f^[0-9a-f]{32}$transferIds array[string] required withdrawalOffersCancellable array[object] required transferId string required isCancellable boolean required txRequestId string name string context object required error string required requestId string required name string context object required error string required requestId string required