{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54046",
    "entityType": "User",
    "nonce": "0xcac18db71ee86691a1372bb440c3d2d6153aa10e13f6e17cc12a196895c4a40a",
    "signature": "0xd255cd13e1480ff320226b21f661ee9e64d2705a3d50b05221e7754990f717af60b1a49a653d73a03d2d5fd163ba842fe840c5e9962750644fc8ce754925b0231c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}