UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'llSrwfYZKKMhqvXRs1J0bU9KqYXENyz+TCkaaAdnxKA=' 
WHERE 
  key_id = '6cefa379e9234d3a80b2412a465e1a56a7a96b2168754d3eaf71e2ec7dc2ed07' 
  AND (
    token = 'llSrwfYZKKMhqvXRs1J0bU9KqYXENyz+TCkaaAdnxKA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )