{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x5d4796699f507b439930b70da3a0ecb100d20739b2bb636356387e72acb6871d",
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    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
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  }
}