Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '960d98190455122c7f28f86388f5f77e9d1a6cb39bdec44ee986074757ef97c1' 
  AND token = '+/Y+ipu2Jt6YhYGoc7iEsE3KU3+XEU5ipE7Pfp47jXw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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