{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x55f12550abe673fcd16eb420b2b7fe01ed7328bd1469fdfa2ef25d8191d1931c",
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    "signer": "0x72A658821dB2FE6310a2883432bDEeA237354b54",
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}