UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Vl0C9Um02iuWwKw9YERnUJ/sNlfu74DRT6n70Q21nDk=' 
WHERE 
  key_id = 'b31147fb7367a5670cba8f5b9f33cbcf9506e1a21af33a3701faa7841d23e539' 
  AND (
    token = 'Vl0C9Um02iuWwKw9YERnUJ/sNlfu74DRT6n70Q21nDk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )