{
  "manageEntity": {
    "action": "Save",
    "entityId": "117214",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7bdda83906eeb9fdea4f01fb0dda855462456cfa09555696b74d80de98c96b49",
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    "signer": "0xd648B38B61b65e4F8df57D4EE65560D8DaacFDb2",
    "userId": "277314120"
  }
}