{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3432b0142d6e8a8c8fd5f2bf3b0e0c7e006fac1073128c51d17d3e0f3583bb36",
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}