Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGpR3ATVrAU/YwsuRRmBmt4zd+9BhPl6pIj1qcEgLjDLxIYFNOqSLA89wdL… (844 chars)"
  }
}