Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bc0c99181e6c549e4d2e052c815d867576499d6ed56ceca8065701fd44c792f2' 
  AND token = 'qR7DSkKHa/ToyGOmaCGTxfTTJF3kEVEt444yt7aMwVY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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