{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x610b3e3cb8b13c540c23a96efeb5936c5f245b5f7e8da56041feadc6fb13a44d",
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    "signer": "0xd436c10bBFA032b075341dDC96d57e0e948ad8b4",
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}