Sandbox

SELECT 
  1 
FROM 
  cscart_multi_declock_keys 
WHERE 
  key_id = 'da7ffe6cb7f36718b16dbbd80bc9f87fb126d4174659962b43659618c2694cbf' 
  AND token = 'zagkQVbKx8pSZPmAp9G42qV8Z9RZiCnCSlius4ibEZ4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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