Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '118a77c0f95268dda9d4da753b4ca87804080d03a23de0485f4dd273fa4dd433' 
  AND token = '7t3xPSXZT66MJXOhRsnbZHfaQKe9/W6oxmyNQKwJT/Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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