{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xce455cab702b5a10864de78dc6cb0065ec73b923e525ebe2d6f5574b74d8f8b5",
    "signature": "0x8215d3de32843a9a8145710c9248abcbd9526fbcae1671089d403da3051282572333eb647ed8a455c91d1dff04eb273517175e031885ecc3378548ce22b940511b",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}