{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x20baf9796c3a766bdb66bbe3e7d6bfa7144c1ecf014f2d7cf51d17bbbdecf323",
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    "signer": "0xCF37605ee4b144e8878B9A159031027881CBa2B4",
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  }
}