{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x4cbb8a95caf1dcf983450b7a775bb956ad1643c61ffa471e8257c6d131117abb",
    "signature": "0x32bc2471800e4e15adb8058cc29e9de0e4735f2e9884f17351047e03d07d00e824a58f8a1be423acc0d5516adf2477e3ad082912dc8c10529b3683b1104ad0f81b",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}