{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x83fba2b0127d483b37d8388acfabcbd45e4ba36f9533dfa4be6f6958f97aeda3",
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    "userId": "376568976"
  }
}