{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "599801",
    "entityType": "User",
    "nonce": "0x96244e163c5a78555b7c993192445ef45d89ea9da1ebfec1c82844924f4d68ec",
    "signature": "0x190bf51a13400e4dc8d073da3628c5cbc726ec8fee39deed4ffaa611b577f96f329032b60905fe4a981caf5fc9f4c3c751b8cead8c252a32e9a19931372c69fe1b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}