UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Lk27ft2byfkgmmMAdDO5mtg7p6mvgZ8CKfklhMTZfoY=' 
WHERE 
  key_id = '3b2d09e00cfac70bc546ab8a28e31b5da6c0bbe88acc4ba5b092bc29ade1e496' 
  AND (
    token = 'Lk27ft2byfkgmmMAdDO5mtg7p6mvgZ8CKfklhMTZfoY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )