{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xec2348eb84d0110694d20db3a104d977db7556151d4d0439531b52acf49a7a67",
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    "signer": "0x75d782C5a68f76DfA69c426479B6ad14383D035f",
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}