UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '51fnK9HMoLCqJw8eMQucnrj7LycUuTxGA5NeHkiGRsA=' 
WHERE 
  key_id = 'b9d1add53afd85a647b68427ec16c510b0636f74778cb8204d97cfbc81100ee7' 
  AND (
    token = '51fnK9HMoLCqJw8eMQucnrj7LycUuTxGA5NeHkiGRsA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )