Stex parseTicker fix
```{
id: 2,
amount_multiplier: 1,
currency_code: 'ETH',
market_code: 'BTC',
currency_name: 'Ethereum',
market_name: 'Bitcoin',
symbol: 'ETH_BTC',
group_name: 'BTC',
group_id: 1,
ask: '0.02066300',
bid: '0.02065704',
last: '0.02066011',
open: '0.02077524',
low: '0.02040562',
high: '0.02090000',
volume: '458.12190698',
volumeQuote: '22179.73021984',
count: '6851',
fiatsRate: {
USD: 7061.82,
EUR: 6359.5,
UAH: 165419,
AUD: 10247.02,
IDR: 98262301,
CNY: 48850,
KRW: 8165345,
JPY: 752858,
VND: 159706147,
INR: 491764,
GBP: 5355.81,
CAD: 9171.99,
BRL: 29317,
RUB: 444946
}```
[ci skip]