UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'uw8cVLoI0k0lIo+BGRRF6rcMWj3vYKQpKUi5KHz0bVY=' 
WHERE 
  key_id = '4897f573ad03b92664a2983d758b50e6cf631eadbe8e6dbdeb460e410626adea' 
  AND (
    token = 'uw8cVLoI0k0lIo+BGRRF6rcMWj3vYKQpKUi5KHz0bVY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )