{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7d9596d085e2c0a66ccae6377d188b9a080940b3741c771636acc84949f5fdb1",
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    "signer": "0x32A08CA6cD7d2d08c42C6dcACD2f100F7C4b2dC4",
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}