SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '9313a8cb62bbe2c84b0afd424c4cd972182ef514844a03100386f5908091f273' 
  AND token = '2CX2oe/yJ6AnE79qwMGWbCn5CyfzTtrKcZjYmPTNEBA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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