{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x1fed2bcd9186a921f9145b351af6cf6a4e6bcc602dc25d74b1e5c5e3d4d84360",
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}