{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x86f44b7e3174a71cb4b69cc35a6db56baae4c6a5d7ef84ebcedfc3e297a94d18",
    "signature": "0x15ef67bf39269be81bd5bd0f8da5141f6f51eb9dad9b62d5a8ea69d439cd02ef78a20b5712b463231190074ac37737a7787f4997a0f6abf493a00038179bd3c11c",
    "signer": "0x2d9dE0031960aD6f53e402E622254d2AeBc7307D",
    "userId": "787599159"
  }
}