{
  "manageEntity": {
    "action": "Create",
    "entityId": "1125534531",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1125534531,\"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": "0x400ddef241f4e7949b3d7ad9f4569e9e5360a7b0b5ce9ff7e0ef6ca67ac4a5ed",
    "signature": "0xea4df157b5201601053d2fa4ade3a58ef5decf28e318604710fec40c765af4d148f3effba4e54fef026ae6a08fd3c8036dc10e28b2a6d6fbdc4271b460d612d01b",
    "signer": "0x569AD4a425B92a964d8e182094f4aC58C0673162",
    "userId": "577745560"
  }
}