{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x023be20cc8d2b569b5c4068f14671126f736e26b8d9af407e2880dea40c8e8a8",
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    "signer": "0x3382C7C7AEDC42b2eBCF4d76955803bd8494A5F5",
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}