Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1c11f06f93cb7c77a6c62914951367b1515c1485ac8eed2e147cce740f1396d2' 
  AND token = 'NivVuno6VMa2hKs51p9XGqIQIy3WAEQZaHcecYn0rUY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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