Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwF6FH51dVzTaPyVRZdKE6Ps7VjkeXExv5o9HcaBYKVEoEYS+Kbt7Rn1pHDA… (844 chars)"
  }
}