UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8zNJT+C8obIMb5x+dbXWOpD2yX0lQV1L7JwPv4Nsm1E=' 
WHERE 
  key_id = '6f1f8aaae20b0219c586cdd8cbe4683c9ac9a80b43e0602e4bf04ae8b23be57c' 
  AND (
    token = '8zNJT+C8obIMb5x+dbXWOpD2yX0lQV1L7JwPv4Nsm1E=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )