{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xae78cf683554a2cdf76722a2c1bfc56a72acee6226cfca7c4d7a600ed8041ca1",
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    "signer": "0x7B1EBae18ea119bA68B6491849eCc402a8Da5D72",
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}