{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x108e86a7efda58f97fcc167cc3e1a80e7a7b8385488c2173ae6e9685b1b1b4c8",
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    "signer": "0x526c3960D672Bcf1D14F5841B1f1b9F2Aa51De01",
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}