Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '26c590fb9408872efd83d9a03cb7d447fb629bc347050af2a6b78bb922d6f79d' 
  AND token = 'zLnFG64/ee57dJ6p6OteN0fm9v6d+lCkvpSCyEsy4gw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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