2021-12-31 7:01:03[1640934063.6734] - new buy order: Array
(
    [contract] => DOT_USDT
    [price] => 27.0406
    [size] => 962
    [tif] => gtc
)
 Array
(
    [label] => INSUFFICIENT_AVAILABLE
    [detail] => margin 3290.6517358 while available 0.287950097915
)