Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwHEFGS/SC5Dk0iMUf+bd8+vZjtAv4SxY4sO2rAbr3pF3xGZAK1qtbTk+rlN… (844 chars)"
  }
}