{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x062081845a913e77bb6c3a991d057abec6f18d82001f1d39cbd58f9166f5875f",
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    "signer": "0xa1cB707a6e6c37F991927639d7aD8433D9024F1c",
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}