{
  "manageEntity": {
    "action": "Save",
    "entityId": "573138457",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4fa593554c73c265fa8aad12b35675fae67d5e8ed4df609fd3a6dd063612cb03",
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    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
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  }
}