UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Mt+PxWUsM2yatvtowavDPpDltmHJwiUeaP+ebjK1pGk=' 
WHERE 
  key_id = '393ae798b8c5806ae48fc2ff4051be0b13dda215fc124482622f3d892b681b24' 
  AND (
    token = 'Mt+PxWUsM2yatvtowavDPpDltmHJwiUeaP+ebjK1pGk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )