Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0818241efc6c9cf873531eab00453a60cf277e4792417d64b13528f410d7d5bc' 
  AND token = 'anbWE0GkroLdmofUm8S+Nxs5AdeoiVZjpfGboi2Dbv0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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