{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x437635af9b9ed02b28660faeef237ea953472f5dd326f98600deb6e082520cfd",
    "signature": "0xe8d5a8f049178b3b8c0295a0c925c18c8b8d51619bfc0f1ac5d08b8a876f3efb46953f1d0fcc90843975aac017de740dff3f61b00e2498358c37f6eb4687c7a21b",
    "signer": "0xA5f664C48C39375c18a869050a07cEbfce57AAc0",
    "userId": "380392693"
  }
}