{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x1fc6837183c37328b98534a188a29aa7d32c0bc10c74b7c63940a1b606e811a7",
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    "signer": "0x34683cB09946189072977dF440dC5c4C76dc0999",
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}