Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0bff4d1e740eaedb7dd9c9497210f6c2b0dbb1330f030b9728baef1a4d2c1edd' 
  AND token = 'kOxD0FfqHP8e6cXYHsTq+uWgQgvXr98fLig3LplG41Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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