2021-10-14 6:01:04[1634191264.0301] - new buy order: Array
(
    [contract] => DOT_USDT
    [price] => 41.275
    [size] => 32
    [tif] => gtc
)
 Array
(
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    [is_reduce_only] => 
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    [text] => api
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    [user] => 621225
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)

2021-10-14 8:01:03[1634198463.3625] - new buy order: Array
(
    [contract] => DOT_USDT
    [price] => 41.0312
    [size] => 30
    [tif] => gtc
)
 Array
(
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    [is_reduce_only] => 
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2021-10-14 14:01:02[1634220062.58] - new buy order: Array
(
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    [price] => 40.529
    [size] => 32
    [tif] => gtc
)
 Array
(
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    [finish_time] => 1634220062.455
    [price] => 40.529
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