Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwEfIFPRDG/NMu/b+Qm6z9ww56ZQojpfsFq6oWW7xK2luyzBZ8WK/SAp4jJP… (844 chars)"
  }
}