{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd8967ecce264eb9032351a0314ce4682116c4d5da4da921bd0f98ae377f178d6",
    "signature": "0xbbc3aa49ba12d4d9f1800aa6bc9a35903bb8b39fa56a05857c52c44ca381bf5f2947a24416d67b4844f2d0e00faacaaaaff9a8ff270817e8b7014194d4d1c76e1b",
    "signer": "0x3aBfdda7Fe70573Bf3a32f951e6cFf35e8E00047",
    "userId": "465093414"
  }
}