UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6WQqDLZzLDs4h1NpI2zYEqKtFY3ySo85gNq4lbfkEoA=' 
WHERE 
  key_id = '3c21f79688be844824e1be76f97c5900e18f24864616abb6ae34616b86104e2b' 
  AND (
    token = '6WQqDLZzLDs4h1NpI2zYEqKtFY3ySo85gNq4lbfkEoA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )