{
  "manageEntity": {
    "action": "Update",
    "entityId": "824550817",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xac9f7ef1af1db486adc09bf7d0533d0e6a75520ab05a634ad17bbb28c54d3403",
    "signature": "0xf756f05f76432f4bc9f227f7a7b49dbb89086a10f90af68514b21bb076c56f2c50355f878e8d1af25fde6a7758a13401552ca605ebe1b5213287b978c68ba5c51b",
    "signer": "0xD4B6aa97d32CbA3f12da9EfE973129E1E154eD92",
    "userId": "824550817"
  }
}