Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9ec7594fb1040fd751f59033f4f5f93feaee380cd443ab033dc79398cc75627f' 
  AND token = 'w2h73XVXqGTi9o9pg6t3Rvpl2Jm5rsR0tlcQhwFlF0I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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