Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGtHMQ/8PYjxlzsU5ued2EGI+H9bTqe5Qmnc2zcyjfcx0h2B0jb5+gwhTMB… (844 chars)"
  }
}