Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7872f15c5b13a8aab284f455b8f3ca535bf1355e004ddfe378e3beb747f6fd1d' 
  AND token = 'zpmINcu5NmBNAZvb5oF0YMKOQeqcVnfRyDFiaTLOLXk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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