Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwChPCeU/Vjrv8FWauIkA+XH7GtHiQ/t5TrR1G6ajQYDh20XGwbpkM5J3czm… (844 chars)"
  }
}