{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbea5e9b57bdd472ffd60bd7a069e32eae842ebe67674c6d8d35abfd4f693beca",
    "signature": "0x810debcb30edcd93c241661f08e7d982a8d109da23e671bb3c8f2c1f1e38f4c32f59a7f888436a8bd412d2667962f112e32f9f29a473684701ef7fb868baccf11c",
    "signer": "0x763598BE8002ad38104619C47D39c9352959F365",
    "userId": "503581396"
  }
}