Implement Action contains GRIDVIEW using graphQL

Hi everyone.

I am going to implement an approval action using graphQL but facing an challenge how to pass a GRIDVIEW data through this technique .
i success to implement this kind of actions using date,numeric and text datatype in past.
this is the GRIDVIEW structure.
<APPROVAL5_GRIDVIEW1>
<APPROVAL5_GRIDVIEW1_OVTDay1>11</APPROVAL5_GRIDVIEW1_OVTDay1>
<APPROVAL5_GRIDVIEW1_IsWeekEnd1>0</APPROVAL5_GRIDVIEW1_IsWeekEnd1>
<APPROVAL5_GRIDVIEW1_DayName1>Monday</APPROVAL5_GRIDVIEW1_DayName1>
<APPROVAL5_GRIDVIEW1_COLUMN1>00:00</APPROVAL5_GRIDVIEW1_COLUMN1>
<APPROVAL5_GRIDVIEW1_COLUMN2>00:00</APPROVAL5_GRIDVIEW1_COLUMN2><APPROVAL5_GRIDVIEW1_FingerPrintHours1>0</APPROVAL5_GRIDVIEW1_FingerPrintHours1>
<APPROVAL5_GRIDVIEW1_OVTHoursFingerPrint1>0</APPROVAL5_GRIDVIEW1_OVTHoursFingerPrint1>
<APPROVAL5_GRIDVIEW1_OVTHoursRemotly1>0</APPROVAL5_GRIDVIEW1_OVTHoursRemotly1>
<APPROVAL5_GRIDVIEW1_OVTHoursMidany1>240</APPROVAL5_GRIDVIEW1_OVTHoursMidany1>
<APPROVAL5_GRIDVIEW1_COLUMN3>240</APPROVAL5_GRIDVIEW1_COLUMN3>
</APPROVAL5_GRIDVIEW1>

Kindly may you help me to implement this kind of data using graphql.
thanks in advance.