Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGUgCOtHX07CNFxdLYvK3Ia6ZyJyuaUNnK4D8knA3SJ8Xr070NtIj0Cx8Xt… (844 chars)"
  }
}