{
  "manageEntity": {
    "action": "Create",
    "entityId": "1375319458",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1375319458,\"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": "0xc3879cb96967edafde1c1b168d56adaa107141e6be9cac473f7129203c942c9f",
    "signature": "0x717b8f9519d96a5a75fac361c27eeb4aa7c12e4f917b70bd8963acd83ea05539214bc975b42acf1b323d76938bcdd98d89276d8030b40a6c4aff5eefc1d0009b1c",
    "signer": "0xD9073C6Ed9E30D9983cEE4538136332838B2c185",
    "userId": "10665470"
  }
}