{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6722",
    "entityType": "User",
    "nonce": "0xfca5a65658df81be11840e1e0c76419aceec8f345095f37638959e01b442a8f7",
    "signature": "0xb3c2ea9eaecc43c7c547a606806af2bf43ea926b70d0216bfe2b4258d02bfc13511c469d699a49ea48423abbb18fa111feb9b8212a2b9ed3e78c2e796460943f1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}