UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U/Bhdx5tnFUs0V+LEWVo83J5CAwoPGiuFWW5M3BG7xo=' 
WHERE 
  key_id = 'e4b4aa27310eeed6c13209f598d6100ce701c4cd2b5745de59e8b9d75a715a4f' 
  AND (
    token = 'U/Bhdx5tnFUs0V+LEWVo83J5CAwoPGiuFWW5M3BG7xo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )