{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x328b3fc9a40c8b0dcd7dec77a587824a611901a0e2d13dc8b8a02d36cfceff37",
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    "signer": "0x389fd4E7ae929295698F95Da5D7B993bEd889fCB",
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  }
}