Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0005a9bc4471b93034e6edb60cf7613c22743d8656f5c38bd9d7500f2af3a2f6' 
  AND token = 'lgGgUpdiNXWBwfNStyS3YhZAMinGtMyk0RtvTnq860A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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