{
  "manageEntity": {
    "action": "Save",
    "entityId": "140294347",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xdcb45c0c783305e8fc2c5146f13ca719036521fb91b88ad7ca6dbdfc5d3978ec",
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    "signer": "0xdA0eFB0e7b973C487c12501759aDb23012CB5248",
    "userId": "178070"
  }
}