{
  "manageEntity": {
    "action": "Save",
    "entityId": "119927",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb4600caaec676dc7cba5ddb7554e449d84f892b62d30c9b7a34a32e9b1e74268",
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    "signer": "0xd648B38B61b65e4F8df57D4EE65560D8DaacFDb2",
    "userId": "277314120"
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}