Expired timestamp, yours 1539282798, ours 1544641321
<hr />
OAuthRequest Object
(
    [parameters:protected] => Array
        (
            [bar] => baz
            [method] => foo%20bar
            [oauth_consumer_key] => key
            [oauth_nonce] => d9adb8fe70a5074fd21750fbea015c34
            [oauth_signature] => AdIBgJSVb2CGUNV1SU+/GwD7yZZvrQLu8ozq3O3+6ZfuPT3S2GOfrUcbiWsX4nGRyHYP/k2JinH5lE+lwKy+bUXcWCVqthxvFfOP5yclDOhqHoMENv4vkaIckHYbSgTvj/qhVV3b8f+9m4j1unVlHPVY9A9Szl35QKAPOEP8BEM=
            [oauth_signature_method] => RSA-SHA1
            [oauth_timestamp] => 1539282798
            [oauth_token] => accesskey
            [oauth_version] => 1.0
        )

    [http_method:protected] => GET
    [http_url:protected] => http://oauthbin.com:/v1/echo?bar=baz&method=foo%2520bar&oauth_consumer_key=key&oauth_nonce=d9adb8fe70a5074fd21750fbea015c34&oauth_signature=AdIBgJSVb2CGUNV1SU%2B%2FGwD7yZZvrQLu8ozq3O3%2B6ZfuPT3S2GOfrUcbiWsX4nGRyHYP%2Fk2JinH5lE%2BlwKy%2BbUXcWCVqthxvFfOP5yclDOhqHoMENv4vkaIckHYbSgTvj%2FqhVV3b8f%2B9m4j1unVlHPVY9A9Szl35QKAPOEP8BEM%3D&oauth_signature_method=RSA-SHA1&oauth_timestamp=1539282798&oauth_token=accesskey&oauth_version=1.0
    [base_string] => 
)