{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x33ceba15506c013040d8f091b8c8d79bd5912cf566d219a2382ff9bd273d86fd",
    "signature": "0x665f6ed901db284e93904fc1a434875c1d7dbfdf9f6ef1bc36bd47c7b049db964d2dd921a4d3ca35dbb142d9df1cd884dfaecc4019a137194133082158727be71c",
    "signer": "0x62e802a3Fe4c23eE572ee4C3207d96A63d8bc54e",
    "userId": "384254067"
  }
}