{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x70ba1376a546cb3782f05b2b48da17c3ee38aea076314313821e304207e30fbd",
    "signature": "0x8917804e5c0c78f5ca332497d07357f241a64bea08c1f23e976e329e2c2628321dc91663788d90a63f9f8f34dacf28b2a04ddaee575c44b1def4539773b35bcd1c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}