UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KUZmG7F2Yii4w8H6eITythzbsTAWSG2eAAPxaRhK4fM=' 
WHERE 
  key_id = '50b1264cbbe89a49e4669381f79e84b23333d816072c129ba0b58eceaf4e629b' 
  AND (
    token = 'KUZmG7F2Yii4w8H6eITythzbsTAWSG2eAAPxaRhK4fM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )