{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4270ad1f757031871a6bd337c761939e63c4302e8de511b0d16d473dac1c0bf3",
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    "signer": "0x0C571670b9D4778082A28171dC6aC7fc2b426c10",
    "userId": "576629117"
  }
}