Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '97f41a64ad2955d6fa5184ccc7185852ef4b0b69f68c9eb032acfce0f7b1dea2' 
  AND token = 'zqjPxuidv5E9JsdNPl+UeekPnomXww9bLq893ZFkego=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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