{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "303",
    "entityType": "User",
    "nonce": "0x849bab7f7ed138ff86eaaec3816d94038b1b3f22cd458f5003da4ce64e6c135c",
    "signature": "0x1d5d8c2187d4ec91f205c765a4df9a4dcdceb15c98bebb7ebf60918eb3c92cfe625330ba5a586ae6cd84653ae9381a55059fed4e92e522fbe93ece031cdcfa671b",
    "signer": "0x7A549D70816B0554b548A07441Be55Dece68d9c6",
    "userId": "480675405"
  }
}