Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGZWlD9Q1DP/0ez2jOt6/YELxVPQJJM1PeHI4wmO2nRH2J6i84/H8VnzoZ8… (844 chars)"
  }
}