{
  "manageEntity": {
    "action": "Update",
    "entityId": "402526451",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9413345fa9be7d17a6e13942a5f8f7eb32d8e01a2b9f9944c941d46bdf869f1b",
    "signature": "0xfcf9e052d713521798b4e011143e19fa76a3cd72129d0240f8907f6b31fc9d1c2ae3030415021ec5bdcdf8cd038964b5eeb0daa57058184106e04295401cd8111c",
    "signer": "0x3268c7e938FD368Bd958d44b728BD13025e27d63",
    "userId": "402526451"
  }
}