{
  "manageEntity": {
    "action": "Create",
    "entityId": "37988728",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":37988728,\"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": "0x617b821c4532d63d4482b5bdf954e0d1b4f709307b3a4a065863b2ff91ca28ff",
    "signature": "0x83bc6ba1daf547d5557b9474d0d3f09650854354201dd3ac44275fd0f24440f33f27f77e82bb36b7008890e73e71b51b804cf1b51cae2b33a24a9c9906056a181c",
    "signer": "0x645AAbB3BF848412862B16580BBDb4CEeBBf2EE6",
    "userId": "47150955"
  }
}