{
  "manageEntity": {
    "action": "Create",
    "entityId": "1780190322",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1780190322,\"description\":\"\",\"playlist_name\":\"Rich Flex\",\"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\":[{\"timestamp\":1774524680,\"metadata_timestamp\":1774524680,\"track_id\":1392609620}]}}",
    "nonce": "0x4c1f2ee8e79dee868c2088d598a68ebca3ca122bea838cb3ac9b118bf09dc9ee",
    "signature": "0xa1bd742f827a7a0c596abbc08a6fd7c82c9e9e8e83ffb08aa7ba61716adc73904c0821ace0b367de2d345d1b4ffa8fd053cf77f93b4c833bc0d52c8fdae4ffce1b",
    "signer": "0x02e544bf39dE2c9D6a681f40FCB033569EBe84bD",
    "userId": "412824318"
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}