UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'oMpf2nRh6wu+tb3LycvgxFRfTFRSO5Ha3njzgrzvlDo=' 
WHERE 
  key_id = '4a4a681e5c3cf2fd196a75f9622d786238306d6597a56430d9720c1617786db2' 
  AND (
    token = 'oMpf2nRh6wu+tb3LycvgxFRfTFRSO5Ha3njzgrzvlDo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00042