{
  "manageEntity": {
    "action": "Update",
    "entityId": "617290191",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcbdb9d8a681fbf69cb92ddd0e6ab9eb6ca3772c8e9139db5c27b972c3ea2c4e9",
    "signature": "0x077a2f52749b2ccf0f0c1bfbbd9ebf4b4abaa9654d8274c8f41ca6dc59bdc9b53cd9f9d54aa8b320abe6346f65e271c0faf41b2c92fe52dc619228ea438eb0ed1b",
    "signer": "0x0C010Ec71Bc6c314dDcC2b9bC659f3Db445F6714",
    "userId": "617290191"
  }
}