{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xdabd2ec2762bec5d89b3bc210b39b8758bd18648248326e96b583d18a579a587",
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    "signer": "0x70559eA08FdCc5b0de1d03FdC7571c7DD8E49fAa",
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  }
}