Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '01c41bb5962ee328b207d80b3c0a314963aa6d5d73a965f5b117794c0aceb385' 
  AND token = '9MO2HGwzBNRUO14tL7vGf1vV8elj7HQRq8BeuORXFG0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}