{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x308adfa57b6c0f832e5454700f97033aee11effba6bb55008326b27323f0946a",
    "signature": "0xff10e9d47ca4840122881990d029b414052b10d82f56d166df4dd37c2b877e5b7584c7db7d8b758964e69647249bd2e5c14ba26b1cc971c212863137c08ded521c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}