{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x147a2ff228785f16e7dcb09afdcee19bd2dcf0916b1b6e4114d817186effdd46",
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    "signer": "0x9acF8CBE8f2B0d51e756C58D6d1f946A8757602F",
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  }
}