{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "370180",
    "entityType": "User",
    "nonce": "0x7743893c763b8b618a579c54897d4d84a89bdf59acab40b993bd2d8de906e39b",
    "signature": "0x4809d27850e0a7b82661cd8c9f62285fb5f582dcbd2e4a1f486063838c421b2f7c5fb00bff740c4c505703f254267cae54be27a799fa3f5e27cc6760ee3fc5231b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}