Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwLpD4Rhq7x+AWgvwftP6sE7yKJ3btO5Ns8YV+fSgF77l1hq5WyWX8D0q6VD… (844 chars)"
  }
}