Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'ddd579315ffd50476b1846bd2e394da25409a9e901f02cc1d116b6582ea6d110' 
  AND token = 'mU4q5DPFzbm7JaM9Esbmq2BZos2UTh91plDHURHZ5Z8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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