Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGMt3qq9u6pnfmPmJ+vVSlDh6SUZqbvUK1z2Yi07bqUwXRj+oDMGpJAw1C+… (844 chars)"
  }
}