{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843",
    "entityType": "User",
    "nonce": "0xe5e3a7b3179eb34a804b12d9cb04f3e50f722e0e8c3fcf5bb03c9cf4c839a7ca",
    "signature": "0x1cecfe5e149561247edf2d4116a4da24fca9578980ec84bc342a197c4aa246c61642c9eb9518a667562cbc1723ffdd7d4d6f45833fa9fb57e14893a9f66d932a1c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}