UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PLzzZEbRAAxeO7B3/lpGIUOg2xObwisn7eni1y7bbOQ=' 
WHERE 
  key_id = 'b6c46353e8e2eac6f83b445226604e2b4e266fdcf64b4d3b894441f5f53dea14' 
  AND (
    token = 'PLzzZEbRAAxeO7B3/lpGIUOg2xObwisn7eni1y7bbOQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )