{
  "manageEntity": {
    "action": "Create",
    "entityId": "1328231064",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1328231064,\"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": "0xf5bcd6b921ba51d227bd728b28abac7dc605b0de817849dd63f785a9b5417ed8",
    "signature": "0xf310ce6e281d2dad728d9c3d299f88c3ab1eed94a68265099fae8ebf53af6b077308cfcb3c99dfcf3e1a45d1cf33f90ea27d606ac555f1d46cb5a7af78c986091b",
    "signer": "0x7e920377E93611BcF59EAfe8db8F78027330a982",
    "userId": "539276466"
  }
}