UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KLmcsVB09kdB1zfISv5vCwgQDpV9GZ1X/jxABjNBy0M=' 
WHERE 
  key_id = 'dfe729b7ebbc70e8f510652e0625f429de6f8e4e822138f599fa41faf2263c3d' 
  AND (
    token = 'KLmcsVB09kdB1zfISv5vCwgQDpV9GZ1X/jxABjNBy0M=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )