Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '32fbd2fb2cccf5a40c43ee033132b88809f80dfc337c692e3d02b6b8041d3848' 
  AND token = 'cs4jdT4SUDH1EgX/HmoPCMNI1mK0YV/5WQyU4Aa/baY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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