{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x56cb240cbebb3c5a70cfcad631811f9135121ba4348340855806773717080a73",
    "signature": "0xd28b64d7d5b4d841e08ba725ca06dcb111051c65564bbbe5322fa75f7aec24d42b2c3c4b095dc7e5fdd369a70a485e842ff6ee8c2f84de62a5809adb2efd98c51b",
    "signer": "0xd543a0232b294823FE594e2f4B732D93B92B24cf",
    "userId": "2559"
  }
}