{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x5c28211792b3cebb2953cfe588d422501100ebfbf6f33e4c7eba2c87c75c3f36",
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    "signer": "0xF95F6bcc507fE8C7c63a8B1820281FB68452fAD9",
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}