{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x80c92de618884460524cfd4bfd9e0991283cd7d6a5408aa52bca018166b65764",
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    "signer": "0xd076cC3FFeA7a187634969c81b0EDa807348CE8F",
    "userId": "90345939"
  }
}