{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x12db30032bb2b0f067716fd4304eb4935af06249d217cead87ada27c5f1bbed9",
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    "signer": "0xa334Eb01413ADAa287901266C48515fC4FddA8Ea",
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  }
}