Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwCxc/7Jy9xefo89Rkl6VhusCu4+l97OhhCutlrJPh8/OVP2QDY6RtCr9cCb… (844 chars)"
  }
}