{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325107192",
    "entityType": "User",
    "nonce": "0xd6b5c40f903ffce2e1a4940d82b9b1550a85948ddb8d9af8b7f51a9813efb617",
    "signature": "0x6e7f9609d14a9769cf9199fdd6953751b2382966d3a4d8035da2a753a6571e371803d2f57d641ec30d5607b30731f463eed8a2a9d6539d73b884520b3ad979121c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}