{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x04a1e7e0bca09cea6c5f5c09f50ebec7538e25ccaf9511b62e858db7111eeb29",
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}