Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'ce36da6e99e5ed676b6acb925c9993160e58879dde28be131101148281eefb35' 
  AND token = '13V3L/SCNfW5xx9q3/Lv6bUOerppJi4NHlKOksPWHyQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

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