{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1353494cffb6caf0d00b57ddd92976a50e4724b7f75aa882943e4a33461f263f",
    "signature": "0x6a8c8c7d375dc116ee1220fa4b8d8e8b554ff2760e9f414e424253cdbc3c36067ddffb8878de314518c72aa0c6aab64735769bf2baa57b9098fd323fa01d98b21c",
    "signer": "0xF00da71d697794A82B3ce77129Ea59608d6A7B1c",
    "userId": "398231271"
  }
}