{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xae1fb2f06009982f6378952154a1884387ef2bbe48616674449ff735826ddf12",
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    "signer": "0xAeD4D1BCEb1AFdADDb3924D7BD54c4ce0a89557B",
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  }
}