Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '32ac89d4159bd50e1a080f0245763bded193ad04c7a3b490a1197d6b4d31e04f' 
  AND token = 'h2wrPekqA1+TOiS1gzdpRlWUqoceL9oIE3vfJkYMVNg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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