{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe6b1afb5b85accc64823154e7fd0cc167cbf518e1abfa4f34e61f594c984f668",
    "signature": "0xd6501076a40eec0d13830f73d01b3cce02879ad0af558ee247fc9d3bb3e2db4e1d46bb1fd130e4c7bc162dec0f56f2a4e14de7e6477fdf25529885b74fdb0abc1c",
    "signer": "0xE16fBDed8db411cCc6FF8BC014b652282c0c8a6a",
    "userId": "592071375"
  }
}