UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'dy8YETjLw6p7tUqkpvLd6OSWyF6suDm7eUsYvvPUs40=' 
WHERE 
  key_id = '53a6c438bff64e62e6fee7384704b52a8575d809f20d6a5d0f5098f3e626988a' 
  AND (
    token = 'dy8YETjLw6p7tUqkpvLd6OSWyF6suDm7eUsYvvPUs40=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )