Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1aafeecc7baea3dd21918db4fddacdc4bcdc3bdb456eefac964c8fe8cee9d85a' 
  AND token = 'wMnBTQIix6DNBcJu2hwj8mimq6yKavZc79u3ALlp9CI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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