Place an asset order. POST only.
Request: Refer to Create Transaction Request for common parameters.
requestType is either placeBidOrder or placeAskOrder
asset is the asset ID of the asset being ordered
quantityQNT is the amount (in QNT) of the asset being ordered
priceTQT is the bid/ask price (in TQT)
Response: Refer to Create Transaction Response.The transaction ID is also the order ID.