Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDVz+4VpU02cJM6sVHQi6gB2Pd1q8GRcsyd0PQU3e5knWiGdq7vgMRGkXZI… (1,748 chars)"
  }
}