2021-12-10 1:01:02[1639098062.9055] - new buy order: Array
(
    [contract] => DOT_USDT
    [price] => 27.1168
    [size] => -2372
    [tif] => gtc
)
 Array
(
    [label] => INSUFFICIENT_AVAILABLE
    [detail] => margin 8142.6428728 while available 0.798488394743
)

2021-12-10 19:01:03[1639162863.499] - new buy order: Array
(
    [contract] => DOT_USDT
    [price] => 26.1165
    [size] => -2371
    [tif] => gtc
)
 Array
(
    [label] => INSUFFICIENT_AVAILABLE
    [detail] => margin 7838.966228015625 while available 0.798488394743
)