{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "307995",
    "entityType": "User",
    "nonce": "0x0484a2bfa451e125bd81b7986b191533ade57a5fcbd66225b63f0f7cac790a6c",
    "signature": "0x511bad600f9c5c534f677ddcac9d630ef6df14ff1f653649a5777af205bcc1d20e487fe177425eb651ed890e5946ea64e186ff2ff440ffb36f361492eb8b1e111c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}