Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'f1362eb4bbab42af123e5261c00b56e9d955a5309ceb021cb641c8ec8d6ffd35' 
  AND token = '41eK/Tp4WGCp4lC/4rmqfbqM0vKZHfweLoxkOw4i+Ow=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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