Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'dfb8c458920b792b53d7b7632419a87ad5afb30796d3f14c213760a34d168c42' 
  AND token = '9EL2pMHE23sZZwIKyW8Y0VEw5G9K2W4XLNgLqpt8jbI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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