{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa8659bac647cdcbd51c888047ccd4f77a77fa70d23a992692bbb1d680a4628f6",
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    "signer": "0x5FDa7aefD3170B463F52cd4ab0dCb4a68F1C6991",
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}