{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x46ca51cbdb91abe88b1856b2bfd781e323dbb4afb3194be8303eedc6a954f52c",
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    "signer": "0x042e9C9345F229BdAE728dE8D319aB57E5E8BEb9",
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  }
}