{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "274010868",
    "entityType": "User",
    "nonce": "0xbbe5d88c11be1516e528e5e9d60a15db4f861ca6c416232f444d3632512bbd35",
    "signature": "0x1671068e41a9c919855a281acd3582a826cb65f1fe07005a4f8b53de45eab08010c11a7d172aa26bed83340cedf2759e297c8eb46bbb21f7fc07de067e2f1e021b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}