Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f80bd1dcbb559eac222d10d392c55d276d5d82eceff662198bb7a217c631c461' 
  AND token = 'fvQ1vxMBjMvC0YFJeRpovRGHYmzrWVdNvn7EelzpaQE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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