{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xf95a7d93f7d29884032cf7cb077a553c72cff9ece2fa2c7b80e4b72d9a34f4e7",
    "signature": "0xaa9dc0036066d603ecdf40ddca127309a8f0f571b794de5f112dc8c754469a610541f4d45af2b792beee020ceabe2379d29c247d67cd9d8fb0158b9ba84326121b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}