{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe8ee5486964e0ffcb929e304aa4b5a537fdfc1dfe9f7472560bb129eb669facc",
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    "signer": "0x4771d07058c4CE4ee096dc337005868Fd209ecD4",
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}