UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'z1BtkOZpqbocIsLgMGvSeBHkwnbysS1a1gOeNHD7+sM=' 
WHERE 
  key_id = '5f83893243e05453659778d605b315c613f1d778df801e35159590e9b2bd8e7e' 
  AND (
    token = 'z1BtkOZpqbocIsLgMGvSeBHkwnbysS1a1gOeNHD7+sM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )