{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43401",
    "entityType": "User",
    "nonce": "0x26cf59a26193c0639a28d1d957e0bafe62947b6c5087f3fce31f8e4917021467",
    "signature": "0x3b5477c645af62e69c2f6cf48843cedb35c1bf68906d9eb0cf746d26ef0c93cb24b6c9126bd354bf8e583bbc8745bbf4b0d74f758b5764c18da081903e36ef131c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}