{
  "manageEntity": {
    "action": "Create",
    "entityId": "1273442254",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":true,\"cover_art_cid\":\"\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"parental_warning_type\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[],\"playlist_image_sizes_multihash\":\"\"}}",
    "nonce": "0x3aa5334804725f6be858e36171fba251c2038a2f5afd45499eb65c124ad45ae5",
    "signature": "0xb65e1fa879dd6a0331f095aeddbc3bcf748756093c972c74471fa360c3df04a1732ea57e330d4a7056cd9732d65ce04aae2007757e1a84e6998e8bbe70a63f2a1c",
    "signer": "0xDf332A2B31D9FcbE2B8b499c821C5d9681EAfF90",
    "userId": "307162"
  }
}