{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9bf153a4ee6c714686165cc5dfeebb87c0e4a2dde711dcea0eb06035a36fcf7f",
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    "signer": "0x353eDF8e08Ac9dBD056D7FB76Eba4FEF59652d9B",
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  }
}