{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xff4bccd8d4afc19e8980e5da622dfb15e1f71988d69b39cc92ad493ec7be740c",
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    "signer": "0x71B8F71375dA14De1773Bc61B714A8467A9c1711",
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  }
}