Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwB4kH6cY1bFOUgO26EUSu0UHRQoTInX1fU/mLI3l1BCbG9H4jc1VpDFnXP+… (844 chars)"
  }
}