Invalid consumer key
<hr />
OAuthRequest Object
(
    [parameters:OAuthRequest:private] => Array
        (
            [method] => foo bar
            [bar] => baz
        )

    [http_method:OAuthRequest:private] => GET
    [http_url:OAuthRequest:private] => http://term.ie/oauth/example/echo_api.php?method=foo%20bar&bar=baz
    [base_string] => 
)