{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xee7d1fb5c9ec4efd0db5a87f7dc3e635d643a5b01bf2a194ca21d510a25df873",
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    "signer": "0x62D270dD6b60F768512d5BF3c156F54eB4c90FD0",
    "userId": "440927317"
  }
}