{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "592353919",
    "entityType": "User",
    "nonce": "0xf0754443cf6c8b65ebd946fe6046fda769f438255559207330ba600391f85d11",
    "signature": "0x610769020705bd6e3b1efa1426429468757785510e6170f4785341a0d377bd2c2ce8fbf561e8aeb5573a65cf93ba0658f036fe1da778d327fb78744b43170f8e1c",
    "signer": "0xF11F60bFb591E532d6E71E699ddfdfC58f377CA1",
    "userId": "458027684"
  }
}