Task: Create a campaign, add a contact, and get the campaign from Emelia

n8n workflow JSON:
{"nodes":[{"name":"Emelia","type":"n8n-nodes-base.emelia","position":[530,310],"parameters":{"operation":"create","campaignName":"n8n-docs"},"credentials":{"emeliaApi":"Emelia API Credentials"},"typeVersion":1},{"name":"Emelia1","type":"n8n-nodes-base.emelia","position":[730,310],"parameters":{"operation":"addContact","campaignId":"603dfd70cbe34c3c9730fd09","contactEmail":"email@example.com","additionalFields":{"firstName":"NAME"}},"credentials":{"emeliaApi":"Emelia API Credentials"},"typeVersion":1},{"name":"Emelia2","type":"n8n-nodes-base.emelia","position":[930,310],"parameters":{"campaignId":"={{$node[\"Emelia\"].json[\"_id\"]}}"},"credentials":{"emeliaApi":"Emelia API Credentials"},"typeVersion":1}],"connections":{"Emelia":{"main":[[{"node":"Emelia1","type":"main","index":0}]]},"Emelia1":{"main":[[{"node":"Emelia2","type":"main","index":0}]]}}}