{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x74a0711ef2c89dd4b5f494aefaa9e87b6bbe2554f5dc5d5f4396e0159e03a41c",
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    "signer": "0xFE17Fe2677AF57d35AbC9CeafeA4FF91C4542293",
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  }
}