Action

 { 
 "detail" 
 : 
 { 
 object (  ActionDetail 
 
) 
 } 
 , 
 "actor" 
 : 
 { 
 object (  Actor 
 
) 
 } 
 , 
 "target" 
 : 
 { 
 object (  Target 
 
) 
 } 
 , 
 // Union field time 
can be only one of the following: 
 "timestamp" 
 : 
 string 
 , 
 "timeRange" 
 : 
 { 
 object (  TimeRange 
 
) 
 } 
 // End of list of possible types for union field time 
. 
 }