diff --git a/lib/class-wp-json-authentication-oauth1.php b/lib/class-wp-json-authentication-oauth1.php
index 913a3f5..cf6a4fd 100644
--- a/lib/class-wp-json-authentication-oauth1.php
+++ b/lib/class-wp-json-authentication-oauth1.php
@@ -93,6 +93,15 @@ public function get_parameters( $require_token = true, $extra = array() ) {
 		$params = array_merge( $_GET, $_POST );
 		$params = wp_unslash( $params );
 
+		// @kosso: Check for raw POST Content-Type: application/json data (requires php://input since PHP 5.6) and then json_decode it. 
+		if($_SERVER['CONTENT_TYPE']=='application/json'){
+			$raw_post_data_params = json_decode(file_get_contents('php://input'), true);
+			if ( ! empty( $raw_post_data_params ) ) {
+				$raw_post_data_params = wp_unslash( $raw_post_data_params );
+				$params = array_merge( $params, $raw_post_data_params );
+				ksort($params);
+			}
+		}
 		$header = $this->get_authorization_header();
 
 		if ( ! empty( $header ) ) {
diff --git a/lib/class-wp-json-authentication.php b/lib/class-wp-json-authentication.php
index 615de8b..1375644 100644
--- a/lib/class-wp-json-authentication.php
+++ b/lib/class-wp-json-authentication.php
@@ -42,12 +42,12 @@ public function get_consumer( $key ) {
 			'post_status' => 'any',
 			'meta_query' => array(
 				array(
-					'meta_key' => 'key',
-					'meta_value' => $key,
+					'key' => 'key',
+					'value' => $key,
 				),
 				array(
-					'meta_key' => 'type',
-					'meta_value' => $this->type,
+					'key' => 'type',
+					'value' => $this->type,
 				),
 			),
 		) );