{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x3bb9e0e48ee0511dcddfdb06d3a8fac90f2a5617b705093ac275b58deadb60c0",
    "signature": "0x6d7cc97acfa9ef7e56a91d1a570e2e02b1860043ffdc7f1b38d67d104593c8ec744d798e1a13194054db5d984b0a0c1a64719560a0cf7dd5140a865c0b7348fd1b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}