Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0070687293a5ee4422c37affd7cff6d2e2425d7360e3ad9fae39b67ddd07be24' 
  AND token = '6D3bioRD0/zR9RRNai2tOn6GMXHM6y9ZeMi9x1dPA2Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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