public function setAttribute($name, $value) {
		if(!isset($this->payload['params']['Data'])) {
			$this->payload['params']['Data'] = array();
		}

		if(!isset($this->payload['params']['Data']['Attributes'])) {
			$this->payload['params']['Data']['Attributes'] = array();
		}
		$this->payload['params']['Data']['Attributes'][$name] = Trustly_Data::ensureUTF8($value);
		return $value;
	}