{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb8ffae40126d3c456b6709588db028b7605d992105b09f6cd8c205ade3f59a79",
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    "signer": "0x5E698A8A2A7e2cA8260eeb35fEf89489021Ed00f",
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}