UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'u8Q41YlYKsWgyIhmKrKAHCnqqNbUlTHogoku9ZhjmVA=' 
WHERE 
  key_id = '4241dc5c69735518b0ac77397dd8d00e4803745d2db91db9220969d88d684214' 
  AND (
    token = 'u8Q41YlYKsWgyIhmKrKAHCnqqNbUlTHogoku9ZhjmVA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )