{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "571117272",
    "entityType": "User",
    "nonce": "0x48cdc165cbff2aefe1e61ea9e1628ed8d142855d380f12814659628f228f72eb",
    "signature": "0x53f0e433a13c9695e925ccbad91b0a46eb24823251d1d28f58759b75f2126cd315187771415792f610fd80547e62758561f65c104a8c9a0cb874a60197ea3e881b",
    "signer": "0xE4c0c73a0c0CD7f65f1bE942f8127c8753aB89D9",
    "userId": "857284925"
  }
}