AnchoringEntry
- anchorType: array of string
_ids min length:1requiredA list of anchor products
- productType: string
_id requiredProduct to boost
- endType: stringFormat: date-time
_time When will the anchoring end. Leave it unset to not have an end time
- relativeType: integer
_position Relative position to the top anchor product
- startType: stringFormat: date-time
_time When does the anchoring start. Leave it unset to start immediately
