{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175487972",
    "entityType": "User",
    "nonce": "0x61859777df9bcf51976061bd364747c67b4ebf743acc30b834a9f5977c1b9060",
    "signature": "0xe55aa972d977507fd76de004c6310f18b645f951b447f1c1791aec131473ec331e5054180c334cbc79f324afc2db1fdbbbdf0550b03f87d1c129c02246b991061b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}