{
  "manageEntity": {
    "action": "Create",
    "entityId": "1481512430",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1481512430,\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[]}}",
    "nonce": "0xeb68c418746ba1852d8bde43e1c1fe0897fbb988c92c71e6aea385d0f8427717",
    "signature": "0x44d0da3a6f25745af7b9ba1c12cdb449284ca29a90cf0078ff170b8a0a51153253cd892ca88d1b81fa859be6ef0861b86444e4803309df9bfa231a246f5adeb01c",
    "signer": "0xA3E7b46319589f16848B715c071b04ea3Bc3042C",
    "userId": "934192941"
  }
}