Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5360a7b03d9400f39994cdb1d92a2962fcfaa30c918296dcaa98c77d62f214ec' 
  AND token = 'ahL1Nh5rLcx8yOX7SnzDqOwx+S8+CTDKuJCTtOufAmU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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