UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'hFs49Dko3iEYGemv78tCyKatNo+sFqI0LVVzVlLdqEE=' 
WHERE 
  key_id = '479c05998e5c3f74bdf9f381dfa6870c232b86848f7fe784e38abe6affc7cdd0' 
  AND (
    token = 'hFs49Dko3iEYGemv78tCyKatNo+sFqI0LVVzVlLdqEE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )