{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x0dfac2ac44bd6301f04db1edb35b583ead52146c4584ff7f6313f0f13a525b1e",
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    "signer": "0x0B1CaaEC70b5bFA6AAD662f63772B90D1bAaf807",
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  }
}