Expired timestamp, yours 1521005937, ours 1529457713
OAuthRequest Object ( [parameters:protected] => Array ( [oauth_consumer_key] => key [oauth_nonce] => e798c756858965dd07082c74352ad13f [oauth_signature] => secret& [oauth_signature_method] => PLAINTEXT [oauth_timestamp] => 1521005937 [oauth_version] => 1.0 ) [http_method:protected] => GET [http_url:protected] => http://oauthbin.com:/v1/request-token?oauth_consumer_key=key&oauth_nonce=e798c756858965dd07082c74352ad13f&oauth_signature=secret%26&oauth_signature_method=PLAINTEXT&oauth_timestamp=1521005937&oauth_version=1.0 [base_string] => )