Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGME5x/Vxw6KDSX6lTas3hFv9SDFD5sKwpWNBn++YO2NEGDi/1VihO1CxBs… (844 chars)"
  }
}