{
  "manageEntity": {
    "action": "Create",
    "entityId": "1478600466",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1478600466,\"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": "0x72b21d939b9660f8969175185a1977e0b9b145c0b1adc5caf32bb217512f927b",
    "signature": "0xc1f91eabf93db0b6a0a9484f9a7cd32c2d015d32437709ff181baec976c4ac8e645ec2ce1f89bf1fecee1193182080403241748a25797a2da35a6b0eee9310cc1c",
    "signer": "0x35c139bC26b7c5CFB9185f419fba3245c0353cFa",
    "userId": "158234527"
  }
}