{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x67343f65b8ddd82a99d0bb6a928c0a616a67d5f1253c67fa808fa3127ab1c340",
    "signature": "0x260c76ee45f33f9f8575d93e7393a035d9eefeaf95728236ce2a438ae1ac6c4b3a13e9266c682572a398f20fc93ef0c83699bfb9e4861e843cac6d43e5d5f8ae1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}