{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1994482",
    "entityType": "User",
    "nonce": "0xb5f153166eb0401f10dbd082a7a81d10f6454070cc5bf3de8175c64b4bfa0bf0",
    "signature": "0x6e3f347b50098bd056c0d55fed4105fb98804ac145b585fde5fc90906fe6222d0587a214d9c37cde993d1ef06985cfdeefe1eb4adb51909ce16082f0ee9804911b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}