UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'b91txvTu1GURhf9TtHYUSOdef9AEDXhVPL6NwxRcY00=' 
WHERE 
  key_id = '7f849d5fdfd922c751ea2aa7f2931466700f24dcd0dff39289b9409f1d771af4' 
  AND (
    token = 'b91txvTu1GURhf9TtHYUSOdef9AEDXhVPL6NwxRcY00=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )