UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Gu52mhpEGtrdDjssvizfkT0OfuG+knBD0ov9iq4VzWE=' 
WHERE 
  key_id = '50b4f39ee4b904d3ff414d8d12459528c88060dbb7b82948354e0d5362bf965b' 
  AND (
    token = 'Gu52mhpEGtrdDjssvizfkT0OfuG+knBD0ov9iq4VzWE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )