Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a92287c975710d5f77eaa0775445f1e2e6e6e8802c9573d1eb1a153e8a20f388' 
  AND token = 'qGRJSyx27IW7qHTAuELhyAXdU8TjRKWL9IVxadaikQk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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