UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'g51dhKau/qv0YAAoyRho1OgVpDtxK5sULG/z+CnBAKs=' 
WHERE 
  key_id = '4d3bbefb58cd96b963762aabe6005009710b0f407c354c7faa2e2794a6be53e8' 
  AND (
    token = 'g51dhKau/qv0YAAoyRho1OgVpDtxK5sULG/z+CnBAKs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )