{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xaa976868291406d4c21657cc486d5e221b1dfa05b84d7ae4b054d547d67eb7d3",
    "signature": "0x973defff8e122f4a72fc77883e705104aa8dbb7efa5aa8f12c0047d80c5b060179572b12286fbfffe7ca093ccfe00d54a6861bdc1f415f339407411a21c27f0e1b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}