2021-12-08 14:01:03[1638972063.7547] - new sell order: Array
(
    [contract] => DOT_USDT
    [price] => 28.5037
    [size] => -2437
    [tif] => gtc
)
 Array
(
    [label] => INSUFFICIENT_AVAILABLE
    [detail] => margin 8793.647092559375 while available 0.839237144743
)