UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MdcpNz4hltY+Me+nGbfnr0RdkmMiDtp0P4hkgcYzD3Y=' 
WHERE 
  key_id = '53e35fc9ff30771afe00423cac2108315f7eb524b098a38b609d88ec6e64032d' 
  AND (
    token = 'MdcpNz4hltY+Me+nGbfnr0RdkmMiDtp0P4hkgcYzD3Y=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )