{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd936c8ee69cc6f4bc622c3813b8a723d66de1215c809b2ab5306d2bdab5af2f4",
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    "signer": "0x0F5E20DcC1F197d06b24ebF218eaA644767E87c0",
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}