{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xf7133dc11c96240a6d2ddcbf483b0c9229441601992708c9e7a1fc004d1141e9",
    "signature": "0xbfa5dd2b89d4f70ef1113696af4831cdf72e1bc446fa5f942103e8a87faf471a3fa60dd0a263c1d442b5ec51e0cdf2368ea3da85a117510812945ed8a521d20b1b",
    "signer": "0x0fdbE0966d6f65E3DE225D16D06131c10d4F2b3e",
    "userId": "560630042"
  }
}