{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x3e94dd951ce26383d29c867418ccdbd50463ecc91bf74e9a3e69033cacdbb823",
    "signature": "0x7ee65fab054a11fec2a886d52cb57d6bf01dbd24f311612216af46e3f2572e262aa7b403582dbbfcdffeeaa358976e002dd53ada203b89bb2ba3e9e3f6d0db3f1c",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}