{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd24bd5aa753128e52b3f9c2bcc9b86599b03322399ef4618e2b423e7dcfd5da9",
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    "signer": "0xbb3b8C270080b0DAE42411345FCDc6a00369e247",
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  }
}