{
  "manageEntity": {
    "action": "Create",
    "entityId": "1619182178",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1619182178,\"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": "0x1859c06f7d8cb5d9ed359245c7064e50ddcbfc9baf1869f52e929d996bc15dcf",
    "signature": "0x81cee44bb88ca3a5e0eb352e7566f6735dc6b265c529f251bf15061d6967ae892c74c7c9d20257ea3409c9d343d24538b353528a5f663762bb92bc17c3bbfde61c",
    "signer": "0x12aD0F6A7Bf3ef1Fb0FFE6e1eF9E50BCa3149Af5",
    "userId": "323879851"
  }
}