Validate request

1. 1. Validate mandatory query params
      
      1. first_name
      2. last_name
      3. birth_date
   2. Validate optional query params
      1. tax_id
      2. birth_certificate
      3. phone_number

Authorize

1. 1. Verify the validity of access token
   2. Check user scopes in order to perform this action

Invoke Search for a Person (MPI)

Search for a person