{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "59868",
    "entityType": "User",
    "nonce": "0x78884140e3eecf624bedab681d945d419124309778d321043fb3e901534c91b3",
    "signature": "0x8bae0fcf2957ca2145724c6000ddc92c5e48ceba955a49d326080d1768fa99216c452424e437ebcf12950a9da835fff4410adb64c35ba9b6a35ca6fd74d352991c",
    "signer": "0xF4DF2D2931c55efC8d4A95Ff5b05579fC73e6565",
    "userId": "390509028"
  }
}