from qiskit import IBMQ
provider = IBMQ.load_account()
service = provider.experiment
experiment_data = service.experiment(experiment_id = '5524b504-2f59-11ed-a7c7-bc97e15b08d0')
print(experiment_data['creation_datetime'])
print(experiment_data['metadata']['user'])

from qiskit_ibm_experiment import IBMExperimentService
service = IBMExperimentService()
experiment_data = service.experiment(experiment_id = '5524b504-2f59-11ed-a7c7-bc97e15b08d0')
print(experiment_data.creation_datetime)
print(experiment_data.metadata['user'])