UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'vrdBFsZTrbeZ4cHVNrLTTa3OAwthSwx4EOali6pCG+A=' 
WHERE 
  key_id = 'ab79e2469d637eafe979f1a59dca80c279b241bdafdb9b6bf5392d081c51ac7a' 
  AND (
    token = 'vrdBFsZTrbeZ4cHVNrLTTa3OAwthSwx4EOali6pCG+A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )