Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFCFan3UNEkm0E4w4r7ISX3rKEoNeO5w/KhHqGOBt+c3RDWE8s3xty+Kj/V… (844 chars)"
  }
}