Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2e97cc8f2a23f06217186f92d1d8ae32e8f7e888c648298cb7dd7a62c645f71a' 
  AND token = 'pj+7Xkpq9+mgEjGnvUSwnFyc1W4A1CP3SAfESyxTstE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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