{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "174576",
    "entityType": "User",
    "nonce": "0xb29f310d9a21c90328253ec57d48c0df8fd516d1ce22b368a060737cabf5cec6",
    "signature": "0xfef34fbf3a7899ed83aec588ab7bf57bc0d7ad591d0922b8ef6cc84aa62a08224f10dbf43306f0e9814c2036189ee5a949705f99570d61b3b1260634b1160dae1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}