{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xed5688375133c3154a97765d55e02c73c6fd998395eb03bf0b5a2f08b7cc8348",
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    "signer": "0x1A03dB80e576Ab52a1E1852ba81778ae8f8f3f95",
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}