{
  "manageEntity": {
    "action": "Save",
    "entityId": "7751",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x44edb89a29e23189be8458b09442a23680eb0aa8d6d6a922b365c0203648729d",
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    "signer": "0x7Dc5480547abF67B7926d1c24AaB5d7BE7e0c965",
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  }
}