Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '13ab127e9a73c10eabff2b3f9d0d1d5f349a6bda1d22930e35472fa982d28f3b' 
  AND token = 'jyNOb7vepdsMDiX2fQJmIx1bvJrApvg5hxziM657sQA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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