Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwA4QNFa4s5l0g5aM7+wNmfbQGsVZVu4pqmMWdBiLighumiZRKwctk4t1FP9… (844 chars)"
  }
}