curl --request POST \
  --url https://api.neynar.com/v2/farcaster/reaction/ \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '{
  "signer_uuid": "19d0c5fd-9b33-4a48-a0e2-bc7b0555baec",
  "reaction_type": "like",
  "target": "0x3702ec1b298bb7ac6f00346432d959ad7b05b9a8 -OR- http://neynar.com/",
  "target_author_fid": 3,
  "idem": "<string>"
}'

{
  "success": true,
  "message": "<string>"
}