Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBexSgxRUuBUnMJoGjw9XX9ew4dV75/qK5zOAOmBLdhlmDDu2IxiP8zdBJK… (1,748 chars)"
  }
}