2021-12-28 16:01:03[1640707263.2715] - new sell order: Array
(
    [contract] => DOT_USDT
    [price] => 29.4556
    [size] => 945
    [tif] => gtc
)
 Array
(
    [label] => INSUFFICIENT_AVAILABLE
    [detail] => margin 3521.196063 while available 0.287950097915
)