{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xdcc0c4bf89fe2508a0539f5ce23bfcf436e507dfc8600913201583a316830766",
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    "signer": "0x361Ded0322F83c895c90f6c612286eCd1DA1C552",
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  }
}