{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16460",
    "entityType": "User",
    "nonce": "0x3ae3636c004222337b87482bc7da68e15bf3ac053d4186b63dc6e5a86f1527a2",
    "signature": "0xeb33a5c4e0970e519d8a90a6c6e1ec6cdbb8a8e6e25fa3cc7e3eae07ec5b148c3c7a183ecdd56d66b1fa03820fb7e9694a007b883326a3d5c9236455fad5f6eb1b",
    "signer": "0x07691D0C34E03020A13BE4B5a411B64CcFff5556",
    "userId": "9014"
  }
}