{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0x223d69501026dbfe6835cb94fc6a83649d09782ea9d89329740cd1160e93adb1",
    "signature": "0x86d86fc35cf1335bd474f9d867c99a4bd54d7c66a10ea157f614fed82e43b92611a341bdf7db8d6995c55097d9bd8afa2edfd0ef3e39369f9ee7200f3b62f79c1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}