{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1477402",
    "entityType": "User",
    "nonce": "0xc40f2379f10a1d9ae100c50651ad2879b8e1a7e3de4b958546acf471234fb477",
    "signature": "0xcb15045c2559999440f2b9b003916ad2e31e7e2da2e70825a9ce2e1fd269e8623cd44d8e4237bd51293d8783c7ee9b6eaed00dbd8c4039f63a245dcfbdb1869c1c",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}