Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHhGhOaVS7H8E8fhE/OID/86eI4zKpyuGsV+Tl8f2/eLDSc4O6CxolzbP6z… (844 chars)"
  }
}