{
  "manageEntity": {
    "action": "Create",
    "entityId": "1976178695",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1976178695,\"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": "0xa3f728a9bddb018702fdab1adf07d485092663811ecab9978accc83592055604",
    "signature": "0x29dff3afdcc74cc948193c01cd9df2d3963d1abdd2412e1349ea1af234b1977422b34f2013ac32862799005f71fd031ec44c65ce79065bca87ef55426903b2da1c",
    "signer": "0x8D9fF7c77B40B31De4f985c6a8fE761A42f8C413",
    "userId": "940795349"
  }
}