UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '4bXwkVAKS9EMlyzw/8IPrkbNK+b5xp/U03hAz0vGX/E=' 
WHERE 
  key_id = '8fe97ae94a4437db97011519667ea36da3e58264abc9877d890e952a9709bce4' 
  AND (
    token = '4bXwkVAKS9EMlyzw/8IPrkbNK+b5xp/U03hAz0vGX/E=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )