{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x49d3b5845a313fc71cb1f0bbd260d1a7d2d673d92e6d8e23b42f0b16a2d75edd",
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    "signer": "0xacA6f260A00A61e8ac07D62ec10fd4805A56f7F2",
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}