Magento2 – How to catch error when id doesn’t exist loading product with ‘MagentoCatalogModelProduct’

I am adding a product to the cart using MagentoCatalogModelProduct and works fine if the product id exist.

public function __construct(
        ...
        MagentoCatalogModelProduct $product,
        ...
)
{
        ...
        $this->_product = $product;
        ...
}
    try{
        $product = $this->_product->load($productID);
    }catch (MagentoFrameworkExceptionLocalizedException $e) {
        $response = $this->resultJsonFactory->create();
        $response->setData(['message' => 'Subscription id not founded']);
        $response->setHttpResponseCode(406);
        return $response;
    }

but I get an exemption when the id don’t exist:

1 exception(s):
Exception #0 (MagentoFrameworkExceptionLocalizedException): The product wasn't found. Verify the product and try again.

Exception #0 (MagentoFrameworkExceptionLocalizedException): The product wasn't found. Verify the product and try again.
#1 MagentoCheckoutModelCart->addProduct(&MagentoCatalogModelProductInterceptor#000000001b3988ae0000000074f86046#, array('product' => 1, 'qty' => 1)) called at [vendor/magento/framework/Interception/Interceptor.php:58]
#2 MagentoCheckoutModelCartInterceptor->___callParent('addProduct', array(&MagentoCatalogModelProductInterceptor#000000001b3988ae0000000074f86046#, array('product' => 1, 'qty' => 1))) called at [vendor/magento/framework/Interception/Interceptor.php:138]


How can I avoid the code to brake. I tried try and catch or if(this->_product->load($productID);)) But nothing working.
Thanks