Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwB0glL9LN73+Nv0zHEKiTaD0u5QLykKApKSfKU9FU8Qk2avgN95k3a5GaHh… (844 chars)"
  }
}