{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5680",
    "entityType": "User",
    "nonce": "0xd8ead5d1ff10c4854a640612406bca9ae07089be928e321a2e6043c9dab7c831",
    "signature": "0xa85cf45e0fc0793bf99cebe88629141e5a33ca6fea8de10785ed30552d019338597897382c1c53b8875ae0e3f27df61cfa735fbcb4ee93192c4349943dd8bf861c",
    "signer": "0xC2A9E3b7F06e60ef97DFB73522582B613021cf7A",
    "userId": "265825696"
  }
}