Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDKJijXRyoZdF8QKEoQcAC4zcRgm5MD1RaM7JXGicRJCDfkNzl9X8rzlZY2… (844 chars)"
  }
}