UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'bvghkEKbTPbniclzTbL7RoCTOnW3oFAUc0USX9NnudI=' 
WHERE 
  key_id = '71c29c6410af1f47e3efe096e77048206416fddfc849f1e1f21a17d46ff12b05' 
  AND (
    token = 'bvghkEKbTPbniclzTbL7RoCTOnW3oFAUc0USX9NnudI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )