{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64814",
    "entityType": "User",
    "nonce": "0x10c43e6cd84b3ff6458903798bd14f4bcf9b6f265f27493e4e0c5310d9fee8f6",
    "signature": "0xc1f673f980d27007eff3b6b8dcd49f0c2a7cdddf22f70c08ffea02a6b51f29d53b5ab51d43f5a9f503875b30b13effd3e0ef43d2038a33bcc7dfbfeeb3bf83451c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}