{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x682b68f55c09134dd53dd690e245bff5392c680f72482a6542ffc40ac4280c21",
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    "signer": "0x9E65086d8532756B99cd9940A06f14EC9D24dB98",
    "userId": "333694793"
  }
}