Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2c115b99bad79f551a06dc562cac533425e2f95044cbc665ab717512eed39635' 
  AND token = 'WNosAKo0vzuRIHhxnuHTFmk8bQ04JiuZ8z7rFNFN3AQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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