{
  "manageEntity": {
    "action": "Create",
    "entityId": "1603384680",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1603384680,\"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": "0x1eca9df7d6c2fd403dafd8d608e880ae80c6ba5333e4f30bd7c20778cfb493e9",
    "signature": "0x1f0495d80cd175c0756ff2930366ab94ab70bf5a4390057a7d9f960c0599276d74009fde624dce93f23ea49f3bc103f5a55308f5d5eb9e1118e6761091b3d6421b",
    "signer": "0xC1b01545cFB07eF93Ea96354a43eDfCCeA1e33a2",
    "userId": "431093315"
  }
}