{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6d883e5a13edecabf65a91cb2a9c5e46008d7fab9ef612936c8f84fa9e2776e8",
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    "signer": "0xaFf213436B188aE2C934F5752Ef397390A39Eef8",
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  }
}