{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "804422713",
    "entityType": "User",
    "nonce": "0x0613f08faef58d7b140cce13b943e74ee807b937fbd4f5ce05020f3d83ded5e1",
    "signature": "0x49a7ce672272e00ec3c03587ba47e083c9d5d5653b7226d3317b5b6c03725c5764690350b7d15bf17101430a3030be59e458f8ba67e7c81c19d6717dad509f6c1b",
    "signer": "0x7D273271690538cF855E5b3002A0dD8c154bB060",
    "userId": "1"
  }
}