Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwC+x+pBowI6zqgPVIlnpWuk/3/BfTH4JZlzNA3T2amrOyJpNOmZ3+E7/pNM… (844 chars)"
  }
}