Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwHwmbA+N3RQKj/ZNjAdUHSgtYVNYq8oYvx3GR3Ld2qnDDrYbm2rA2s7sBqE… (844 chars)"
  }
}