{
  "manageEntity": {
    "action": "Create",
    "entityId": "280691557",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":280691557,\"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": "0x25ff8f936a64dca1e6d625de0f67a801ce5a65af521098af435e88d0419895c3",
    "signature": "0x903bf7eb02d2d4cd5059799fd5d53d72129d704dcb90c944caf94031d27b299c4e17338a15e5a49a805d4c3d3770f0f97e310ee63fb1c0376fd786b74655091d1c",
    "signer": "0x3DdfB99173Ed7ff3A083C9C589582B230d37906E",
    "userId": "192527938"
  }
}