{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x832889d9bebca705f2a85e96a66a4f6cd1f52726fe2f6ec81d8260aec474a137",
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    "signer": "0xF65125BEdfc6C611d09ff053EAaABA73493425cD",
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}