Yes , in HTTP Request , we can pass soap envelope , but you would also need to pass header information ,
below parameters would be needed ,
in headers parameter , pass your soap method name , (not the xml , just the method name eg “XXX_ORDERS_INFO/QUERY_ORDERS”)
and in the body , would be the soap envelope , (body should be enclosed in double quotes and should include your header xml section as well)
output of http request is in XML or Json based on the soap service … so you would need to parse XML or json accordingly to read the data …
as for escaping the double quote , - check above screenshot , escape it by providing the double quote again …