{
  "manageEntity": {
    "action": "Save",
    "entityId": "1973982105",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4a22cd5aca62451e98e2fdf3a20b84a873c270975616a1f09933b8fed50b0049",
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    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
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  }
}