{
  "manageEntity": {
    "action": "Create",
    "entityId": "1680333415",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1680333415,\"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": "0x83a3c30401c23078ea4caec59f0f77a0446c58050ba7af8ee2577ed7e6abe706",
    "signature": "0xed5c3be78cde3c3b3885538e0c8f2a4de59525fa70eb98643634371cd94cc15c191227a70f1ccd8d4d67b64dcb3dfad5403fcbd6e9dcced7ecb93f0101e1ff151c",
    "signer": "0x447887A35958D25Fb5B659937312606ec7E55dBb",
    "userId": "999396914"
  }
}