Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e5b4561898d194165997281f81aadf9182d92fc435fbecabc64de80258b8151e' 
  AND token = 'NhetrFrMOMNUUoQeb7f7EV6QAJDinaow8ywYoSJEKbE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00082

JSON explain

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