{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4db04e2f1a6eacaeb2634d0cdc3909e2a6618f4831da143b0d22c7815236dcf6",
    "signature": "0xc77f22fb7dcc4de8a77e67074c8629f728edb636a5af43bceda6382d924ee5035e7021f275119305d7ed82a86cfc5397d30d3cb461c0a14434049b66bde6aa1c1b",
    "signer": "0x0B9e1e3085E6E571Ab09fbd81078295f3f2bCC04",
    "userId": "98513040"
  }
}