{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "611525840",
    "entityType": "User",
    "nonce": "0x88850906b0b36e92fde4f7fc0fd45e008cd3ea01b270467ebee4424805fa47a9",
    "signature": "0x99fc7f2c642c75685aa499b2bb8fec4ca0493889d26bbf3155b173f29b5c9f1073f6735787eee56c9db2f1dfedb8ac3f7c33f62737a7f1735bf307b9848b83281c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}