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SELECT 
  1 
FROM 
  cscart_multi_declock_keys 
WHERE 
  key_id = '073aef06db1edd0b5f931ac0288637760ca9e46f618389545b18bd3ba8470dee' 
  AND token = 'kT1Y5e5tINRp7HciUT2dm7uRTga4NOg5t26SaE9eaXo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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