{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa2a725caa71be3e2afac68aa4e600aa9e9f4df70397c385e186fd9b2ba82b6a8",
    "signature": "0x918a79b74d1094ca908c2c4a93017f80dd3a083f250809316a9fb7e147db002a5e4518b24378d8efc23047e8a11898ed745885736ece891aa7b3ccd424596f661c",
    "signer": "0x850aA0456b0ef795D5D345834cb661E8c083574F",
    "userId": "733747072"
  }
}