Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '075b461a00e0b234ad8402ac73725dbae25188e135fc4399e217cfaa2a515855' 
  AND token = 'LlhZ6ZHGdV+fAsbaZ4ohW6nTZtceK0+UiW1rorFJuNo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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