{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xb7c1d92be29391d2d979d51d1b4da8e34f6579027bdba96d78a39b3dfe5af4f7",
    "signature": "0xd2b01c7ee4246fbd59658ee56365e91e4d950a9d3c1f9a98bf53367ed96a5b5c6aa7c9f69fb965571c29f0586b5b3831a02ded0023f946a4d27f74e1ed88b2e31b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}