{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "712688986",
    "entityType": "User",
    "nonce": "0x9b4b3f710e2372b165c08106bfe9fbad8a5bbdf751f2a95b427af78c508cdad5",
    "signature": "0x00414fbb75484cc42d412733dcb27875755318b6ccb14311d82cf415a51fede37152314db13d181363732c02343829db1f8bdb83d7611e923f348163d09dd82f1b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}