{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4b0eb8907ef30d1f956c2ef9552d4789727de89a7eea04e206ee44f7fbc0a78a",
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}