{
  "manageEntity": {
    "action": "Create",
    "entityId": "1510903420",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1510903420,\"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": "0xdc79c90781b3cbb27049dc0654f03aede9e2d241a2c91d34104fffbbbb8e6d16",
    "signature": "0x0270e1d072a47c1c2bf7c9e2ba049da307ec0ce37d0832e5f428f3e31df75e8e0b0057138eb8e7990642f5825b477e7021fed43ddf317793b0fcc113b1e60e0f1b",
    "signer": "0x5EeBb1725F44bE087D2184d792B687E5f67737b5",
    "userId": "685312534"
  }
}