Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '707c13ea515e16d054ed62b7e93d6d9bdd2c2d7357a97653602713621b324ec5' 
  AND token = 'QvRnJJLhn3Wx3HJXmNDuDmziL8SIIfo6ttko7Ym7gl8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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