How to payload the part of body with content-type is x-www-form-urlencoded?

[dikafns]

I want to make different post with external .csv file that have 2 columns
This is my body x-www-form-urlencoded

For cmd key, i only want to payload that number 3 from [column 1] and number 10 from [column 2] on my .csv file.

Thank you