{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x4c29121f2a8cf61af72e4fb349503c0b5fbacfdac22a2a07ad18f7991b6213af",
    "signature": "0xbc96e6c354a4f312c4844fde2ff1e67a1b0ebb94c86ca0d11abcad2114dba4cf66aef202a0203c6706e831f9b6d6f334942770b9022ded46826e048e57eded9e1c",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}