Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwB01e4d5LAwWQ7HzH+KqzGriTndC3CCq2sSFtUqrKoEcCMSj6CkLQP1x5ZD… (844 chars)"
  }
}