{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xbabe2b16723a025b9bc0633710b43c4d2f539df4f745c9b3b8383986958c9600",
    "signature": "0x539f7958f83e2790a3aca6ad9c3746a184c6da17a90f92f2d58b7832309200051ebdb0dbaef9b8f67bb0bc070e633d0b9a14eeb84a46f9e773fe85b5e62f25e11c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}