Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '095882d0d5b57a34b297cb63200b2102a9bbf7deb92bea1ed7432316873c51bd' 
  AND token = 'Uu1MgQOfNIT333cfhvBxrIOBKG/QyVk8R4h27pvILzI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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