{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x43ab5c83c1f7a08b8bada78e96b0f0c42c8af0c87a4a70d33f7f8538125ffeb1",
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    "signer": "0xf38D06b94526Ad7785149E74802a0195e73dD49d",
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}