SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '054d3940f75f00c7a32a230188e6818c1e556277646aa2758da60dfbe0093816' 
  AND token = 'zBEr0Z7mP2w8CTPGjC3gBQyBPznLHsFLfwc0gAN3IaY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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