Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '469113ad07ede38be6096425982266ee9a431307d3b201bb72a885d7064cd892' 
  AND token = 'K1neZrIB7AH4v5Eav80WjpvtgLh2/J9QoD5lgi/gKcM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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