Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHk7IkAtIr6vH/hwRAa8Cxopj2wwNjQW5Mqom9XsXxVzXJWsLJ3GqPtIlj9… (844 chars)"
  }
}