Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwH8pkV1gZELgpxXoDflQeKF+DVmRfRD0d6W/QJ3a9r6NTel8A6lHMYVmKiD… (844 chars)"
  }
}