{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "683609933",
    "entityType": "User",
    "nonce": "0x45a8722208977f7b2da6780decddf62fb7624c0a929990bddc388959458d1814",
    "signature": "0xe9ebefd681351109ad6089c8416e8c2a4eca1e4d1996ae323fd467e28d093d840f7316a2b9b8edf737d0646fe0cc38449b4adb76ae2bfeb0cde5b0a8b92fdc951b",
    "signer": "0x2752c6C488Ef240895028c3B2287EeC269C7EC7A",
    "userId": "79019982"
  }
}