{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xb5a7dcb744bc43624de4d6ecc3d8a96bd4b9a99c9bb1cfd1ebb3f33ae37fac9f",
    "signature": "0x2908b5fa1d42bb0930f1621fb28d9d96c26dcab8c9a0107d8b7364540535002e1ef6189dd46766be3fde04371020f31dc4dd2bfa4f8a0c9ff4a3638beab47a231c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}