Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1102a701f84104e9dfd47ac969093c09d9976c2aad1e0996e8f6f03809052f62' 
  AND token = 'gPE5JSouCsGpVGzVwnwhNoitgtsHWJ6vRjONrsQrSEU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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