Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '360b5e6b820aae2b263a4458ed72655727ae899f6e72c8d6381fd6cef9edd968' 
  AND token = 'db+y970OqT/eOwaKI7ATigL/dgZKf9H0xRQ8CYIKIfA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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