{
    "type": "ticker",
    "trade_id": 20153558,
    "sequence": 3262786978,
    "time": "2017-09-02T17:05:49.250000Z",
    "product_id": "BTC-USD",
    "price": "4388.01000000",
    "side": "buy", // Taker side
    "last_size": "0.03000000",
    "best_bid": "4388",
    "best_ask": "4388.01"
}