{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd2764a486c8019b8aeb693bbcb491480d99ee2147f9474f295a341b6d047896a",
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    "signer": "0x825558fbcfFf5d9378146705Ba36E009c9Bb3f24",
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}