Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e94a60cd00f3ce6cab297da5fed266e7b54add58569d35a653e8fa48ee2188da' 
  AND token = 'RJEreAPlw0+hGsWQ8oFVGtxttEgitHXR9Re4H3yrB+A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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