{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x30be8a31696479b4d1b0eef779f4ba2dc577458834fc5d6b0d01c435130c9f95",
    "signature": "0x47ed6987f666ee60f139cef0075bc566bec197308efda175c870371a70691ecf6b850e49811ae698fd4ca569d45ed00a365297cdaef8f4f73d7d4733fa38949d1b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}