{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714646433",
    "entityType": "User",
    "nonce": "0x299a4691b4b4c359cd39ff196c0c3c05b1d4b78bb6c001ac0756de213749942d",
    "signature": "0x813abe2926442be4487392114bf016cc84ef0296b0d4559a5d162d8cb115d6a44b975c86953dc39ac27b231e2f1848bc02c982c83225c6a17d85cecd8d656cef1b",
    "signer": "0xE4c0c73a0c0CD7f65f1bE942f8127c8753aB89D9",
    "userId": "857284925"
  }
}