[
{
"last_trades": [
{
"amount": 123,
"instrument_name": "<string>",
"iv": 123,
"maker": "<string>",
"mark_price": 123,
"order_id": 123,
"price": 123,
"taker": "<string>",
"tick_direction": 123,
"timestamp": 123,
"trade_id": "<string>",
"trade_seq": 123
}
]
}
]