curl --request PUT \
  --url https://api.formo.so/v0/contracts/{chain}/{address} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "address": "<string>",
  "chain": 123,
  "name": "<string>",
  "abi": "<string>",
  "events": [
    {}
  ],
  "start_block": 123
}
'

{
  "name": "<string>",
  "chain": 123,
  "address": "<string>",
  "abi": "<string>",
  "events": [
    {
      "anonymous": true,
      "inputs": [
        {}
      ],
      "name": "<string>",
      "type": "<string>"
    }
  ],
  "start_block": 123
}