{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x24524dfa84884c08ab1a023894664c0a4c773cdaa8bb50aec1462039abf03494",
    "signature": "0x8fee9a045288511e92b84dea8836c9be7206bdfa0d7ddbd908bed34b2f67271959334614e489c115b36a35a4b1604ab117da84a5b3d19f6150adea8ed9290d1a1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}