{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x42ce6c14b2a3c5c6eac5f8dfa38211316c86dbc00a9991e60e5de5247658d2b2",
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}