Web API is not connecting using Token

Hi Team,

I am trying to create a ADP Pipeline to connect to Web API using Provided Token. It is a POST request with passing parameters in Body section. 

But I am getting error every time I execute the Pipeline: <error>You do not have permissions to use the API</error>

Parameters passed :

token='xxxxxxxxxx',
content='report',
format='csv',
report_id='xx442',
csvDelimiter='',
rawOrLabel='label',
rawOrLabelHeaders='raw',
exportCheckboxLabel='false',
returnFormat='csv

When I try to connect using Postman site with application/x-www-form-urlencoded, it work good and returns the data set.

Am I missing anything in ADF ? Please help.