{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xdfe150ea1b5e99852422b81c09c3b20354a18a27db963226e137e28829ca2ac2",
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    "signer": "0xFA9112Dc792f388551493e62b4aC1Bf4828BE182",
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}