2022-01-03 21:01:03[1641243663.3421] - new buy order: Array
(
    [contract] => DOT_USDT
    [price] => 29.657
    [size] => 1008
    [tif] => gtc
)
 Array
(
    [label] => INSUFFICIENT_AVAILABLE
    [detail] => margin 3781.623384 while available 1.103654977915
)