{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "89",
    "entityType": "User",
    "nonce": "0x9f396463a385c4e990ff8763ddc186900e852ac2c9841b0f617c3951b17d7e44",
    "signature": "0x8e47c79d37476aea361e8083412f477dadb280d8c5e51797c17000ae31f6081c6dec4007d5e1a84926f97354976095787988325d2b9063c542599f43f4d572451c",
    "signer": "0x48c4F1C0d0cbFF1115450a2547577c3B18D8febb",
    "userId": "642037758"
  }
}