{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x5e65d7b44968327ef29a12ef9db3fe02ded0bfa51dd1b0afb23f01c1f14ab1c4",
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    "signer": "0x500C0B059Befc9f07796c2dca9CAca6Ba1934faf",
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}