Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQACS5gWE2Iy2iE+KptJzjgV5+zRghkdzue6o1/1Y+s6zRT2R5oa/C9ghial… (1,748 chars)"
  }
}