Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0d726fd5297f1ac243b78c2244dac3a8bae58ae22471b86ca74baa1601115dfa' 
  AND token = 'Z/8yRHHuw/hUFOz7mcal/ZqrG6M+ShinjK4jC28OOt0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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