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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6ea2562e5b8a3c93b1c80bbaebbf75cd9585d45408a44087d2a577e2887bcc37' 
  AND token = 'Y5IjFm91muI1lrUEKNxzRPhT+apbGkmNKb0a/wNP220=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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