{
  "manageEntity": {
    "action": "Create",
    "entityId": "770052144",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":770052144,\"description\":\"\",\"playlist_name\":\"Kpop\",\"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": "0x37d287023850789eeed993d73ee46c8bea09d6a456498634a2db99c230efb471",
    "signature": "0xe0943b4e4be01366fc8f23f4852debb2be8af46444f4afc05aa3f08aaa9190091834e23077947084953195198abcaa8dcb4b3cfc4edfab953028d076b7e226a91c",
    "signer": "0x9C2da7d9F17D48211eBFe150dc5717C26eAcA530",
    "userId": "914673760"
  }
}