{
  "manageEntity": {
    "action": "Create",
    "entityId": "1621195151",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1621195151,\"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": "0x4f358c44eca09b0c4f8af4392947fd5f6615a8743bf4fe7ca75ef0a768bc5c96",
    "signature": "0x4042b87f939cd56e4dd58d888ee783820df7b73b552f5f062cf0119aa82b61d331dbd1cc792cbf8a789571dbdd0a0d398794f9494dde09b16f31e9a4811a443f1b",
    "signer": "0x02b22aB437A19E1E948d9b814Ec57BEcC859a5d9",
    "userId": "640927319"
  }
}