UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 't9WSYSaKquLE05W22ux13t7EfqzzPafs2cqR4eYLU+E=' 
WHERE 
  key_id = 'b169548fa5e67500611ff28103096c4270f02a331be6f89b0c46bb91f42a1b23' 
  AND (
    token = 't9WSYSaKquLE05W22ux13t7EfqzzPafs2cqR4eYLU+E=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00034