Tags the thumbnail as DEFAULT_THUMB and removes that tag from all other thumbnail assets of the entry.
Create a new file sync link on the entry thumbnail that points to the thumbnail asset file sync.
null
object responseProfile:object:KalturaBaseResponseProfile
abstract
objectType:string Enum: KalturaDetachedResponseProfile, KalturaResponseProfileHolder, KalturaResponseProfileKalturaBaseResponseProfile must also match any of:
object:KalturaDetachedResponseProfile object:KalturaResponseProfileHolder object:KalturaResponseProfile