{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "526992328",
    "entityType": "User",
    "nonce": "0xe78604589b43bd590c3c2cb3e9f719c1512c064d0cbb52dfbf81b316f6199adb",
    "signature": "0x5213008bf8fa03707f8bc89dd551c392073f91becd37b6bc232c2cf4b1697111224143e9e4deb327666b7bd4c1da89c1f3b863f0397ddb89fcff0aae55a6cdf81c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}