{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe7d40ff500a788120ab7236cb0502b81844289964809be0e15da55f9821a1704",
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    "signer": "0x88B2f6C9f9D7E2B1115283bfFb346a67AAFb13dB",
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}