{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x35396df2bfd8f25eb1273491771d62ee6b4880419e5eeae5e510d422d1dae0d6",
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    "signer": "0xbdB8eA7Aa50C113b1755Ee2985da6D2DC957FE4A",
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}