{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "56556",
    "entityType": "User",
    "nonce": "0x56b418e114c15afaea4d007b570fc364eefa573011785b68878d072ca02f2646",
    "signature": "0x529c3fd388b13ce94d90beab1b031b883d1b1eac2ed02a636d8f7f4d7d7cffeb286c544ab3cb6c069462dac0f3ea0b25aa67430f0961e989631e972b9c6fc4271c",
    "signer": "0x9837C03EAdfA74365Cdf4e01e6840D356104bFab",
    "userId": "911622928"
  }
}