Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '944e57c7a731f870663ea328d08e5a08847c92c517228894aa98c3de2222a0eb' 
  AND token = 'oJfAcVHizGGAdDGdkwim8rrJ1I1FyCyLa4LqNlZrwcE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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