Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwG4wn3Rr4C0+7gRT3MOweBp21dS2Gakmp1Jcp+GXwTf9B+uGcM6xf7EkPW4… (844 chars)"
  }
}