Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '62b58b419b515e88fc9340120011786a9b3cc27435e0c444dc0681558dc524e6' 
  AND token = 'cGc2pvuUMKFaqptzaYrdHYTPAcuT0XFl3cQIOjBgFdQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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