{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x65f9b687338bb2b04824bf291f48ed0977c0d12f72a1412a2fc46a66ffab6384",
    "signature": "0x8d5722b4c7b3d4be499c8e1b5e70a1105cdea81654c5f3921a07c1017a9239d32932394aea9d7b068ea41edcb60709302c5f1199e6e62fe6cff265e7623334b31c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}