{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x1e62c1ad9d55fb73aa2dacb9929e42bee50695f06ffa5eb428566c1748cd33e2",
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    "signer": "0x79ccb48Cd9904479BB0E6049F3B3f83892bB049f",
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}