Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '9eabb6fc85911d15661f64e50ce0d936ab5062cba9489d22fa8799f3eacd94e4' 
  AND token = 'wi+qnav9nbfmZDDAEmiPkLk9Ilaixf5sZglATStSjks=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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