UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MocXb9oMhibUsdLtt7fKKXPYBMsPVf4GsIhsA/gnxak=' 
WHERE 
  key_id = '21c6b5b5cfbca7158fdd726d68d54c41ed2749d0e3594375a0d4ff2e52af8cb6' 
  AND (
    token = 'MocXb9oMhibUsdLtt7fKKXPYBMsPVf4GsIhsA/gnxak=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )