{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xef114a471ae27c49549633d387bd419b98d47686df6adfa89a7928895fd30201",
    "signature": "0xcd853784ffb37daee70de77a4946501c313694cf0367ed5a85d294a40ff53fa04896614e073ace18f54eb2c1da8e458e86d85d03c606a755346164439d7377f01c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}