{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x0b6fe85619d535410849246e1fe286869dfdb00a3164bc663f5a57f51b5fd545",
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    "signer": "0xEdB4Df1e51B3107a48fF6d17937Ef551321a2A7b",
    "userId": "933935152"
  }
}