Getting Unknown Exception while querying 'UserEntityAccess' in work bench,
Query :
SELECT
EntityDefinition.Id,EntityDefinition.DurableId,
EntityDefinition.QualifiedApiName, EntityDefinition.MasterLabel
FROM UserEntityAccess
WHERE UserId='xxxxxxxxU75'
AND EntityDefinition.qualifiedApiName= 'xx__c'
URL :
/services/data/v36.0/query?q=SELECT+EntityDefinition.Id,EntityDefinition.DurableId,EntityDefinition.QualifiedApiName,EntityDefinition.MasterLabel+FROM+UserEntityAccess+WHERE+UserId='xxxxxxxxxxU75'+and+EntityDefinition.qualifiedApiName=+'xx__c'