// Figure out correct claims type
			switch claims := data.claims.(type) {
			case *MapClaims:
				if data.tokenString == "" {
					data.tokenString = mapClaimsToken(claims)
				}
				err = ParseWithClaims(data.tokenString, &MapClaims{}, data.keyfunc)
			case *StandardClaims:
				if data.tokenString == "" {
					data.tokenString = standardClaimsToken(claims)
				}