Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwEQ4fUDKuvoWIm3dpOY+Uq7DqGT5Eibk0UWmVH1vBuPyGH6l/mAmOjzGhpE… (844 chars)"
  }
}