Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFWJ96/4AiUR2PZeVOOBN5hEuJHY5nZbtYyW/+bg/2GiUBmpjRZ+nCM5T2Z… (844 chars)"
  }
}