UPDATE 
  cscart_june_setuplock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MDsKWcH1nhtaClWhs4cwLrOD5+ZBlaebn24EBHaX/3M=' 
WHERE 
  key_id = '6e76ddfe91b86dbc275cb5ff5cd248d95408936361a0e697923a68fcc88c9378' 
  AND (
    token = 'MDsKWcH1nhtaClWhs4cwLrOD5+ZBlaebn24EBHaX/3M=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00035