{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x7bc24ae1bb82d7099daa933c0283b09f36dcf8b2bf3d70e04d614b0df630e732",
    "signature": "0xffbf4d380f6d123cb04e84851a6cb8f6516a232b20a121a8de954550d9a05a7a7985fbe63c20ffc354beeee917798686183ab184d189cc866920b98a815d71e21c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}