{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "4281",
    "entityType": "Notification",
    "nonce": "0x1a722b2670dd42332b887fc922951314eff171e22a5a84a318c99611853fa7e3",
    "signature": "0xe703609d3f7a3a4fe961b412e4d9fbc1d47edd82c6d3637d99641c144ac5e3d939b9dbf44e03a1449ec79631dc4ce754bc16a47e0ff2fe2bccb218cfe57b48df1c",
    "signer": "0x28509abd14970e165D1f5E0018A5409Ea856C689",
    "userId": "539347142"
  }
}