UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'pGqk5dHrDnzRrXu+tvavi3/BA2tZqghXZhS3iRl8fLc=' 
WHERE 
  key_id = '3900d778fde000d52604af9b23b02ca5bf15228faf5ff706130c5737ce828275' 
  AND (
    token = 'pGqk5dHrDnzRrXu+tvavi3/BA2tZqghXZhS3iRl8fLc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )