{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa6e8442e07b28f558b7ebf859172fafd3f2256bc84ab311213836276a3fac822",
    "signature": "0x4e96c6e394248a5c47ef5d837f908dc01c93e8a67c93c047e9544ea47be8168f4383ca2bd0990fa38f0f17887c487b3adcc077d7c7a3f10184bd91361fe6a6821b",
    "signer": "0x5c3A14eAd942d7299d7814f8FF5A846934B13463",
    "userId": "450598201"
  }
}