curl -X POST https://api.convertkit.com/v3/forms/3258788/subscribe\ -H “Content-Type: application/json; charset=utf-8″\ -d ‘{ \ “api_key”: “EbnGUEJC2UtX2r4yMcpUsw”,\ “email”: “”,\ “tags”: [Freebie Signup – Kickoff Labs – Harvesters]\ }' 
curl -X POST https://api.convertkit.com/v3/forms/3258788/subscribe\
     -H "Content-Type: application/json; charset=utf-8"\
     -d '{ \
           "api_key": "EbnGUEJC2UtX2r4yMcpUsw",\
           "email": "",\
           "tags": [Freebie Signup - Kickoff Labs - Harvesters]\
         }'