Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '48a63038a8de9aa9a969139b9441996f0d10861acdeece528caddb56464b44bb' 
  AND token = 'aWm1d2TjRkUzpC2o3MIN3EVqZD6TFB8qGrl2+FiG/Qk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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