{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x453b47e1b0a184c8f9b6b887982b88527eac97cc7bbe651b511c11e1dada8be1",
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}