{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa5c52b045b6b6ea49b85c1439e4207dac72932187683b987d910b2e715591734",
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    "signer": "0x7D89eD1c2C9744b86AE1D1301E8F342289D2f3cB",
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}