{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x145926ab988f0f8877eca213fa7b28891ca7185cbfae2ce71fe92eabd7c01342",
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}