{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb7b1d535b7f80b0cb57ecf613425802df7d3ef50ae4aca98b60e38b82640cc96",
    "signature": "0xebd56c36c2527533bed79c13af18c6cad336a4f2d8af5733a0b2d3c857bddaa21d731899d2eaa65cb45e22ed265b91375276a44c6322713d717b222ff549af6e1b",
    "signer": "0x3e8b05c47DbA55cC56bb8b2aAEF26b0B43fcCd45",
    "userId": "575002694"
  }
}