Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0199d61c10b4103a188d65fb25b79127d5dd7e99ff709160347ddf63ac7e7e05' 
  AND token = 'GuVhcMr6RmB1O4/1nxwM00i4rs0y7QHJmBmsv8OaZro=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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