A system, comprising: a server; and a first publisher node device configured to: transmit a request comprising an authentication credential associated with the first publisher node device to the server; receive a response to the transmitted request from the server, the response comprising authentication of the first publisher node device as a ticket processing client for a first transportation service; capture, as the ticket processing client, an event associated with the first transportation service based on the received response; and transmit, based on the captured event, a transaction request to a broker node device of a Mobility-as-a-Service, MaaS, network associated with a publish-subscribe pattern, the transaction request comprising a transaction message and an authorization request to route the transaction message to a first subscriber node device of the MaaS network, wherein the server is configured to: receive the authorization request from the broker node device; and authorize the broker node device to route the transaction message based on the received authorization request, wherein the first publisher node device is associated with a plug-in module (622A, 622B) configured to convert the transaction message from a message format associated with the first publisher node device to a message format associated with the MaaS network. a server; and a first publisher node device configured to: transmit a request comprising an authentication credential associated with the first publisher node device to the server; receive a response to the transmitted request from the server, the response comprising authentication of the first publisher node device as a ticket processing client for a first transportation service; capture, as the ticket processing client, an event associated with the first transportation service based on the received response; and transmit, based on the captured event, a transaction request to a broker node device of a Mobility-as-a-Service, MaaS, network associated with a publish-subscribe pattern, the transaction request comprising a transaction message and an authorization request to route the transaction message to a first subscriber node device of the MaaS network, wherein the server is configured to: receive the authorization request from the broker node device; and authorize the broker node device to route the transaction message based on the received authorization request, wherein the first publisher node device is associated with a plug-in module (622A, 622B) configured to convert the transaction message from a message format associated with the first publisher node device to a message format associated with the MaaS network. transmit a request comprising an authentication credential associated with the first publisher node device to the server; receive a response to the transmitted request from the server, the response comprising authentication of the first publisher node device as a ticket processing client for a first transportation service; capture, as the ticket processing client, an event associated with the first transportation service based on the received response; and transmit, based on the captured event, a transaction request to a broker node device of a Mobility-as-a-Service, MaaS, network associated with a publish-subscribe pattern, the transaction request comprising a transaction message and an authorization request to route the transaction message to a first subscriber node device of the MaaS network, wherein the server is configured to: receive the authorization request from the broker node device; and authorize the broker node device to route the transaction message based on the received authorization request, receive the authorization request from the broker node device; and authorize the broker node device to route the transaction message based on the received authorization request, wherein the first publisher node device is associated with a plug-in module (622A, 622B) configured to convert the transaction message from a message format associated with the first publisher node device to a message format associated with the MaaS network.