{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x8fe17c6d25cd2c16b6a46c2d28d28706145a7c0caf7412308249381b493bf03c",
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    "signer": "0x0B8abd82fE2af1Da3824433d0810Bea9F1E152eb",
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}