UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'am99IvHLk1pfR7MFBnj8rF+5GapmqUVAoQZ02Xfh21g=' 
WHERE 
  key_id = '31d2755e5b02e8e33ea04b8c739f495c91e935c76023b6df8459438fa0fc7da7' 
  AND (
    token = 'am99IvHLk1pfR7MFBnj8rF+5GapmqUVAoQZ02Xfh21g=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )