Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwC9EG2KgSDD4FesP+Qlsg6F/HRbP2OfecNuqnXWi1e+VkgXVik0yXGPD7F4… (844 chars)"
  }
}