Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '2a885fe4de65f9ba14b82e15429d13c4debb50ae20f10e728590b5fd3b220365' 
  AND token = 'qV9ZHnjZsaRrhUCdRz3oyxOVyUMQHSK4i3PNwM60XDA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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