{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x59bdd765a91b1770d8d069a1f367f8c8b4424959c4945894fbd4fdc605f3a30b",
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    "signer": "0x5968d7FD20b3da74b6eaA11CFf1F802b63C1cc15",
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  }
}