UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'FLCmrSJBLhf9gwWRWqYnuMig2LnIWDL0sihzY4rgUVQ=' 
WHERE 
  key_id = '555d6904328268235fc9b8518c2434d47358ca75221111b9623994d7c0772e86' 
  AND (
    token = 'FLCmrSJBLhf9gwWRWqYnuMig2LnIWDL0sihzY4rgUVQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00022