Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9d145cd8413f3785a878964a96dc66de28333aaab14476db65839b8effa3ea84' 
  AND token = 'Jjj+yQv/Mkzs9ex9o0U8ewoQ5jLEEvZenOR4aDVrAgk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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