2021-12-07 23:01:02[1638918062.2527] - new sell order: Array
(
    [contract] => DOT_USDT
    [price] => 29.4625
    [size] => -2436
    [tif] => gtc
)
 Array
(
    [label] => INSUFFICIENT_AVAILABLE
    [detail] => margin 9085.7157234375 while available 16.839237144743
)