Authentication of a web service that points to a hana database container

[Santiago789]

Hello experts, my client requires a webservice in which he makes queries to a database that I have in the same space, this is the mta

# XSUAA

  - name: bim-tarifficationservice-nodejs-auth

    type: org.cloudfoundry.managed-service

    parameters:

      service: xsuaa

      service-plan: application

      path: ./xs-security.json

      config:

        xsappname: bim-tarifficationservice-nodejs-${org}-${space}

        tenant-mode: dedicated

- name: cmm-ddl-hana-hdi-db
type: org.cloudfoundry.existing-service
parameters:
service: hana
service-plan: hdi-shared
service-name: cmm-ddl-hana-hdi-db
config:
schema: CELLNEX
properties:
cellnex-container-name: ${service-name}

The web service has a normal xsuaa with which I can make local requests, but when I deploy to productive and put xsuaa authentication to the webservice I can only send one token to the web service and I don't know how to send the second one for database authentication What could be the most appropriate solution?

Best regards,
Santiago