{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x97b0133cfee8d8351ed9085ca36b46a47b43402acf269f9e0721c81b2000f777",
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    "signer": "0x0118dFc4bd72D01EE87b349A142A99141905b73f",
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  }
}