{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa461cae1392f3cdf24d5b3e1b59dec7cc4f61f0a22ad6895e3d42616129f4fd8",
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    "signer": "0x1EeF7f4505C388ca4a4B9A8fC01FcFa7c805D3c5",
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  }
}