UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'N4FG0obgLsYhiS2OVnlYd2yDrfQxuN4rBtUsEqEwjr4=' 
WHERE 
  key_id = '270c15dc130f487aa9ec04aa889aa37ee7a4a2e2002a1617b7bad579351c4498' 
  AND (
    token = 'N4FG0obgLsYhiS2OVnlYd2yDrfQxuN4rBtUsEqEwjr4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )