{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe7f27f4ad8bde387f159e19307835905f88aea30720041fb5d0c8fc88e73d203",
    "signature": "0xafbd3d3822433506807e406c680d7f9337791ff19092dd534703bb8377b476b30334d11ef494dac9643260ca6a7ed59b48876ae912bd723135c4dd0d1b2571da1b",
    "signer": "0xFC32f4D3abfCeA6ddcD3501F4E8794e0d6d85041",
    "userId": "187732870"
  }
}