{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb0e96c42e701c2f04e896474deb20cb10ed6bdef41428d6d17a0b9a8f499f474",
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    "signer": "0xeB8594C91d906C7215f8004BE2DC56e9F34615D6",
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}