Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHWf8H7Zg66tZqVf7xFVPJJCwPrWAOyl+TUjeMXmmu3YG3xnIcfkAQ796yh… (844 chars)"
  }
}