{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x93d6a1d55d955af56ca7b058b128d08e95c386bfdd190676c8c92aea091049fa",
    "signature": "0xe9013a9812283cc3e6dbe967c366d3e39bfefac90549d9df94105a9907b881103a3ad8a8ac5af038abfd409aef1aff616f1faae1ec7cc473e9c599d2f2e035011c",
    "signer": "0xbC913022617058E5f1B044bE7F6A18a56F7eD964",
    "userId": "673807329"
  }
}