UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'bBbfvkhkfx7zAzBkOlu38HdbOjnM9FbhHrnygWOLLG4=' 
WHERE 
  key_id = '50603941bc473970dcb35259c63fa737a5f0edd49991f5b88d0cfe37209154a4' 
  AND (
    token = 'bBbfvkhkfx7zAzBkOlu38HdbOjnM9FbhHrnygWOLLG4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )