{
  "manageEntity": {
    "action": "Update",
    "entityId": "393048772",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"Reggae\",\"is_private\":true,\"playlist_image_sizes_multihash\":\"baeaaaiqseal5ui7e6kepzht72vk2umcgyy2vbmlofxdnzvwj4rond7u5r5fhu\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[]}}",
    "nonce": "0x62d31448645b71a39c9b00659200645a33328326e4299c7f378fc54c8d4b6be7",
    "signature": "0x9270bda960067b89bd83facf0e86de59d30e87d43cce3e05daa327247993142e2edd6b7c0bf7fb697c9f243e2756d4e228ee0a18c29a78fbf20b9713bbcb91881c",
    "signer": "0x3DdfB99173Ed7ff3A083C9C589582B230d37906E",
    "userId": "192527938"
  }
}