Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'f1e65853ea7a5b084528031eeb3cbb02482662583bab9914b9dd63f918f7c6d8' 
  AND token = 'QynhyOMHhZy/Eynk/V5HoMAOAKf4GLvQLEst4cTR+0E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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