{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "712688986",
    "entityType": "User",
    "nonce": "0xa8de91f187aed0562aa88f3d586f68a1052465907a369a9e92f7ebcb1c410f98",
    "signature": "0xf3a3230c44a291b1d81da1fa78b60d058f5b576559c5b3a0fc6157f1607516a917ba4a2526a27251c9e591b380a7a0815bbbc8e4bda56f9f79ef39db23971b2e1b",
    "signer": "0x4D8EDeF47b57f98c89BDFf851267B0327BE4cD05",
    "userId": "5307724"
  }
}