{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x82336bf1f8da3026b9dfd0f67ce386fdaf4a43de9e5afc2e11e6938bf89e5e6e",
    "signature": "0x46233e07328ad1b7b9321a716698f4dd08e326f4daef11e0a4db3e0c096318da5dd0e99466308db5b6a4026ebc4753b8574cea4d8f4d06df375c711df83537721c",
    "signer": "0xcFe1eF2d8538759fbF5161710b35d043b5f0c077",
    "userId": "712556959"
  }
}