Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGfZqs70Ysz4AWCB+W3P9s4a8CrGQxW/1wsGtl8oIWheVDJEcJKgrMhJ2ro… (844 chars)"
  }
}