{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3f5b0d82134c2743e3b000d04c8998be4b0e96913d223e2f944161d5b43fb936",
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    "userId": "215477734"
  }
}