{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863739",
    "entityType": "User",
    "nonce": "0x302b53c6899c82cf727ad23b62600d60cf902cca4cb6ddadd237205efeb7dd8a",
    "signature": "0x1ff8f6d2376baf4358fb103f6ace9dbc66bb229fb9c6a0d98caf7c94eb39cf0e5ee95b4fac4e241a222712db118ad1af0c7f32e4aa332672743c9f7f6ed527781b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}