Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '530e55c7d756d87ca8a67c0c4179e74599db5f1cc31b76247a0a596f1f22ef96' 
  AND token = 'RkSN7R3QB0pSJbGIfGM5Ucy2vIhUgaN/hc04wECxC4U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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