2021-12-16 8:01:03[1639641663.2939] - new sell order: Array
(
    [contract] => DOT_USDT
    [price] => 26.9305
    [size] => -2452
    [tif] => gtc
)
 Array
(
    [label] => INSUFFICIENT_AVAILABLE
    [detail] => margin 8359.4392776875 while available 0.798488394743
)

2021-12-16 17:01:03[1639674063.7183] - new sell order: Array
(
    [contract] => DOT_USDT
    [price] => 27.5631
    [size] => -2451
    [tif] => gtc
)
 Array
(
    [label] => INSUFFICIENT_AVAILABLE
    [detail] => margin 8558.24035569375 while available 0.798488394743
)