{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6f933e03ab4d01f1466fb9964a5a743c4de30be57c5fe2fa0c8721ec539dc72f",
    "signature": "0x37d7117aa1bc3e8b6ce56ce4c94afc2cb2dd5636530724bdd916c2b31e0da3f9085a674cbcd4dc5c0281f681aeddede2893865710de69bb55e0399803ebcab331c",
    "signer": "0xA386423c4cD40942cbb64b9b605C317a465BD1EE",
    "userId": "356385717"
  }
}