Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'b682e386a213ad98e575d06459006f5f2bb7104f98ac6f41a2b3c252204c9566' 
  AND token = 'JWtOUiuXd6JKWV8F4iiWVz3UiVufP8YG7V6KqtnqRe4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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