UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '3+CNnccpTRyT86IypzPfTJOMzngROhI18ngT5f5X638=' 
WHERE 
  key_id = '491fd39d307cb5bdfcfb011985785f268dca9cc183751ed3c0515691d779a2f4' 
  AND (
    token = '3+CNnccpTRyT86IypzPfTJOMzngROhI18ngT5f5X638=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )