Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bd9cc053c14af85432ff62459fa320eff11f8cbeb77adea4afed534a249f5979' 
  AND token = 'Yjw66lDVXqMJxaTQkHotjiAvsRa4Za6fB476UtyInS8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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