UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U7r/odAS+FUsizopOrth46lRaq5dPsnHd2tw+ZV0HI8=' 
WHERE 
  key_id = '8f8dc3f89dfffcae5e01c5ea2c3766e01b4b4f7b862b717ef0ad3410783b1b9a' 
  AND (
    token = 'U7r/odAS+FUsizopOrth46lRaq5dPsnHd2tw+ZV0HI8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )