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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0092674db5355baee7addcae50c1cd87f8a8adb39c33b2fe7a5ff0803d81841b' 
  AND token = 'EJ2D0Ywd/C+jZg+kXXmOI8knEwUKDjL6JY5P9tnWtDU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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