Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9ccd658cafad4c53c7e7c7fe63679745908461554a1676c9d3896d90a9eaa32a' 
  AND token = 'SwhTzGfMVrtaa8DHD8GzmYXpGW50gJqms0j09NR1lME=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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