{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6d008ea8f92ffae904de63217ea5a3c234d3a29bfaee6f4d06aa1200436e6d4e",
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}