{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x1ff5e268ca3da9604fcd4895ec0b2f7b63ce22cd916a92f3baeb47d8e40da32a",
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}