Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwH6u/zrlqLSVqO7zWFvGXJKljSuEyuor3jSVdXxU1CHXSAT1M2gg/Lcg4l9… (844 chars)"
  }
}