Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwCnTmcM1Gnrb7+WX71LoQVZ0lShmXK3p/3BANpS6MbhsWkJdIdzK4P8tpPs… (844 chars)"
  }
}