anchor.diff:  
               {
                   "service": "fiware",
  +                "aggregator": "fdelavega@conwet.com",
                   "appProvider": "conwet",
                   "chargeType": "C",
                   "currency": "EUR",
  
positive.code: 
  This API manages the following fields:
  *  **service** - Service where the limits are applied
  *  **appProvider** - Provider where limits are applied
  *  **accums** - List of accumulated balances for the existing expenditure limits
  *  **type** - Period of time of the balance. This field can contain perTransaction, daily, weekly, and monthly
  
negative.code: 
  + Parameters
  
      + aggregator: fdelavega@conwet.com - Store where the provider belongs
      + provider: conwet - Provider whose limits are defined
  
  + Request (application/json)
  