am just having this error confusing me

Error: {"status": "error", "reason": "Content-Type header should not be present", "code": "API0020"}

and API says

Content-Type header should not be present Please make sure you're not sending any body in the request.

and when i remove "Content-Type" => 'application/x-www-form-urlencoded'

am getting this error Error: {"status": "error", "reason": "Invalid signature", "code": "API0005"}

In reply to Re^3: Invalid nonce by frank1
in thread Invalid nonce by frank1

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