{
  "manageEntity": {
    "action": "Update",
    "entityId": "1226179010",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"epirendity\",\"is_private\":true,\"playlist_image_sizes_multihash\":\"\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[]}}",
    "nonce": "0x340950d686d70703ef535648482375bdf5433b27f15e9f53fa2e01602f7f92ab",
    "signature": "0x4c269563648cda677c44a7961a954253aac816d9eb01449efa4c257b35778a1867b33d9389b343d7bbb6b556967583dc96b25f977a8d75d1d8999c398845e58e1c",
    "signer": "0x58D31719051f3b9840A312D4fD7AdC68a8Af5E9d",
    "userId": "173906"
  }
}