UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KEueY7MgWgoV8tFDXq81CH1yWzOK0FNNMf2AmJfROUU=' 
WHERE 
  key_id = '839351382122e3f2f38685a48d5ce565328e588169029775455e336d35e44696' 
  AND (
    token = 'KEueY7MgWgoV8tFDXq81CH1yWzOK0FNNMf2AmJfROUU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )