{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0xf5f0d2271436e637e9ccc6051511576cae64abe3c0dbd8ffdfea2ca95733f524",
    "signature": "0xe066a44315b84f062239cf8869037e922cb82fb592caac128a427245a839d48d66972d1fd2ed4795f36b741c7efc848129c833f4965d3cd9181d319722d2678f1b",
    "signer": "0x2147B2CDf9246a066970f23473B35056BD42dFB2",
    "userId": "577412293"
  }
}