{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4d123e962b24b4db5e2f8f3f57cec6348bf0fac55db9465c2b2e17573d1fe9c8",
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}