{
  "manageEntity": {
    "action": "Update",
    "entityId": "322740473",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"making song for my self\",\"playlist_name\":\"DJ BANKS\",\"is_private\":true,\"playlist_image_sizes_multihash\":\"baeaaaiqsebttr5kyc3hksuezkl4vin6p2dhehe7wzomiapehdwijyql7xf2wk\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[]}}",
    "nonce": "0xafc4b984adb07d1a314d692fd784a173f84c7bba285ed55858a6d80d63902d84",
    "signature": "0x874dc019e550eb392e9304aa8f3645136f493c336b0e1f70f60e1bc6fa222bb93471a2db40a0fe29369d0e42c20481b3604b9392e78981b89c2e19b93f0798c81b",
    "signer": "0x775bA7FB8a4FF9354c099465ca493BA949FdAca6",
    "userId": "597677270"
  }
}