{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x18df50dcb34cffb43a674f4c99e540ef55a5340faeab5975a103ad5f34a6a664",
    "signature": "0xb2d7669f7657ae584a81c60931e783230d580327e166b392921445b5b9618dc270099289549ba626f81c53357f8a882741e98c881e3383c4c17bc3ccad0ec4bc1b",
    "signer": "0xd543a0232b294823FE594e2f4B732D93B92B24cf",
    "userId": "2559"
  }
}