Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '801fbc1284917b96dbbb28fad206aba06b4ea17ed6a7f840f769108851390d34' 
  AND token = 'NIUpgTFpkJH9LlHqqmXC89g55OHrySrFxsnimY5TrNg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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