{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xfc4cbe96490c1b46dd33fde2d35324f47162fbb4d6efbc82ed959f92137bebb1",
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    "signer": "0x745895918A1926af8a7B4C34Af51BdF98bf5C7C8",
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}