{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x30c33d7025c9d207a2d55f2263151313a5a05230963752ce7bbac18d94f67374",
    "signature": "0x083806a7838f570505e60cc01e9a7e6d95331c8f5c11157c36c2f5568b92b5686f1f310d40d317b8b1879c148d4796c58055fb9a101ef55b27c22888a5ce84bf1b",
    "signer": "0x4f24EFcc0f8174B7836f5EBbeBd72AF3f1746E74",
    "userId": "230109234"
  }
}