{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8113",
    "entityType": "User",
    "nonce": "0x570d3bece55cb7b16f834016c0e514491d1fd6b6241805043d5c4901e5e772cb",
    "signature": "0x4e7664defb6d0b02cd3077938f0ca0c26ac53514047adc67fb52a23c96febabf48227fe6b509aef4fa38d0873a2bd46e34bb1f4687b4ad64c6a3e4d7010e16231b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}