{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "45218240",
    "entityType": "User",
    "nonce": "0xf89b2b76907f9f053de51ee1332db37583e88623c15b3787ed34f0a605586e9c",
    "signature": "0x8544c087e0fa884668333908da86e38d45ef0f72b7939c8307d239666da2c6816a910bd83ba70994ab60574083de1b37940fcf42edd918f401bd1c80f33538a21b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}