{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x0081bc6937d820783fa991d87c18e791e922ae38d0f5298ca75d71af105bbd6a",
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    "signer": "0x2a3494ddDB5D34Cb2778C63dC6e5eBeF02071FcA",
    "userId": "280220384"
  }
}