Error when json external filtering

Anna Sho

i have  a table where column geo_id  contains list of ids (reference to other table of geo)[Screenshot 2022-01-27 at 18.14.37.png]I try to filter query by geo_id=11

as geo_id is list so I use operand "in"[Screenshot 2022-01-27 at 18.07.44.png]when I try to run i get this error:[Screenshot 2022-01-27 at 18.07.51.png]Can you say what's wrong in this json?