{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "1422880728",
    "entityType": "Notification",
    "nonce": "0x8db0886d939abb628277a3c5d7e81d7fdd309d4326e20fd9fc42d1b5c6ad6738",
    "signature": "0x36324f39c47f32e6134f118454dc97a56626d8a26a801ecaf5a3a5e31efc264b03accb7e636979cd98a82597b00bad3dcbb705a437461c98c20822641bd8606d1c",
    "signer": "0x6687B667182cfdc5646f5AEB14a9945c9b1d3A6B",
    "userId": "100"
  }
}