{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xed954f6d44d2238bcdc9457a24c8640a387b83358a31c5357087cf8669bf51a9",
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    "signer": "0xc9C3E808Cb827dAFd8378F0A6BAF68a755a61C03",
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  }
}