{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xde5cc56d74a3874e686503f799b0e94c0def309fdbb7a4f3aee50e42c9193b3e",
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}