{
  "manageEntity": {
    "action": "Create",
    "entityId": "748254241",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":748254241,\"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": "0x13e384c107dc1358115abb240fe3705229c4d8d464e58f7ba5bd67289e66a724",
    "signature": "0x18737e7bd4f04c99be6552b4e20117205b87dd6d7bb62045c16f4d1280cc5cf80e75712ff6ec4459643960016fddb634cf6eeca53af462cbf5c3cff7a6793de11b",
    "signer": "0x42A77074ca485a8d1E966f6BA3315bF823A7A7Aa",
    "userId": "512455047"
  }
}