{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x8e327f73d0b714b1eb8db66ef752f2ed847e99fdb17ce89f69eff930a25a199b",
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    "signer": "0x97Bf0399B8dE4eFd676567151F7439CD02e15F78",
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  }
}