Counterparty signs and activates the contract
cURL
curl --request POST \ --url https://api.example.com/contracts/{id}/sign
curl -X POST https://api.midasprotocol.org/contracts/contract-uuid/sign \ -H "Authorization: Bearer pp_your_key"
PENDING
ACTIVE
{ "id": "uuid", "status": "ACTIVE", "signedAt": "2026-01-01T00:00:00.000Z" }