{
  "manageEntity": {
    "action": "Create",
    "entityId": "770551421",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":770551421,\"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": "0xaceb6ac6d41f9ae488de2eacd2d61d3e06861a0c870228f721f930ce263976e0",
    "signature": "0x03f06381cfac9453a64a268aa7f003f2385b7e2f2709122654747dc8009d59fe0e224fa4408bc451ab1310b8db006302dc92d9921c97d18c3b3953b8e927c1901c",
    "signer": "0x239136F5cc278393F2dF9D61b8477152F8057009",
    "userId": "448693482"
  }
}