{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xcbffa594235f81a0a541b2ec0967c189eed03d477c73be26f5b06c6117adc523",
    "signature": "0x1db6f2723bdf03dd3508856bd8166d778000a7b8287ec8c7c32f297ed5645e5354fb6e9a2ad47bf294aa6749b50f55f8798a56467f0c955085f594337b6d87f41b",
    "signer": "0xEFAB3332CD5EA33e9817aa57B32CaCb8Acf973A4",
    "userId": "407216161"
  }
}