Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '052b15b6a0f2ab3083be2a40678e6dbe5a2cfa0a4817a65d77ea4c2aa6f89462' 
  AND token = 'HWR+bj3JJ0oyJnK0i42Gza7KqlBFRvM8uGXxE6ExAXU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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