Magento 2 : Send Email use Object Manager

gistfile1.txt

$variables = [
            data' => [
                'name'=> 'test',
                'testvar'=> 'test34123123123'
                
            ]
        ];
      
$sender = [
           'name'=>'somebody',
           'email'=> '[email protected]'
        ];
        
$objectManager = \Magento\Framework\App\ObjectManager::getInstance();
        
$storeManager = $objectManager->create('Magento\Store\Model\StoreManagerInterface');

$transBuilder = $objectManager->create('Magento\Framework\Mail\Template\TransportBuilder');

$transport = $transBuilder
                ->setTemplateIdentifier(19) // template id from Marketing -> EmailTemplates
                ->setTemplateOptions(
                    [
                        'area' => Area::AREA_FRONTEND,
                        'store' => $storeManager->getStore()->getId()
                    ]
                )
                ->setTemplateVars($variables)
                ->setFrom($sender)
                ->addTo('[email protected]')
                ->getTransport();

$transport->sendMessage();