How to Request setBody

Hi,

I have problem using wpcf7-redirect pro

when I use postman

$request->setBody('------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="csr"

-----BEGIN CERTIFICATE REQUEST-----
xxxxx
-----END CERTIFICATE REQUEST-----

------WebKitFormBoundary7MA4YWxkTrZu0gW--');

This one is outside

$request->setQueryData(array

but when I use wpcf7-redirect pro

it will appear like this

 [body] => Array
        (
            [URL] => 
            [apiID] => xxxxxxx
            [ipaddr] => xxx.xxx.xxx.xxx
            [domainname] => sslindonesia.com
            [mode] => NW
            [dcvmethod] => EMAIL
            [dcvemail] => postmaster@sslindonesia.com
            [username] => yudha
            [userrank] => Manager
            [userdept] => Development Team
            [email] => xxx
            [tel] => 02153660861
            [zip] => 11540
            [addr	] => West Jakarta
            [prod_sect] => 501
            [years] => 1
            [plus_day] => 1
            [webserver_type] => 1
            [sigalg] => SHA2
            [eng_road_addr] => Jakarta
            [csr] => -----BEGIN CERTIFICATE REQUEST-----
xxxxx
-----END CERTIFICATE REQUEST-----
        )

how to separate CSR from it like postman?

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