{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354535",
    "entityType": "User",
    "nonce": "0x3c590b7dfcfa800adb724475d2bffe2d8ab200f846884254fe464ccd5c138ca6",
    "signature": "0xf15a132c0829b244e889e77a4df2ee10f593748d85f453bd02f65dbe5f6295444d6c98ace86ec6788382230a64c63c734790da31b43d73c70e27d983c3ab4f501b",
    "signer": "0xF41F0Be0EDEE88E2BB4f3bD4db4b9B591a08EF65",
    "userId": "396323126"
  }
}