{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "244823089",
    "entityType": "User",
    "nonce": "0xe7d98c9c1640eecde423fb7ea28bc7c3c7310e5fcec57858a0af17a51b51c4bd",
    "signature": "0x42a8871e6f1ca47538ca29ddd8b803f9b95629aa68bef0a3a7666191258a7c511ddd3eeae9a0525a531460d4d8b5f1e55be30fd395939ed3a59cc9b1acfd90351c",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}