Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '19cbf0135e986ef3afb28fa5e1e303b6f6df255ca19e4d77ca1d3b27e0e60b19' 
  AND token = 'tlIldUfYb+IS0xUNGrtN32Z5f5gLBrWf8Hqj3L//IFE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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