{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x5410d56d0c0a74399bc225b18491cf0a54e57ef9ac7913cfb75898b0a8bbe786",
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}