{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854614078",
    "entityType": "User",
    "nonce": "0x0880114eef560b9c95751b09c21736b67438df1d2d4ee9f16fae0ca287b73beb",
    "signature": "0xc16cd909e5a6f81e8a3ea2064de6ba35cc3dcea33a54645d37765156066c966e0a6dad88ec56cbe71863ab7fb397bb23cafe28eaccf28ce5bb55998f6f1031441c",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}