[
    {"guitar":{"passion":3,
               "expertise":5,
               "willingToTeach":false,
               "lookingForOthers":false
              }
     },
     {"soccer":{"passion":3,
                "expertise":3,
                "willingToTeach":true,
                "lookingForOthers":true
                }
     }
]

val pgObject = new PGobject();
pgObject.setType("jsonb")

[PSQLException: ERROR: column "passions" is of type jsonb[] but expression is of type jsonb
  Hint: You will need to rewrite or cast the expression.
  Position: 43]