Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7972b526adcf42800b3291899ce455752271fc4a0557ab5776c374658c9ddcb1' 
  AND token = 'ydlRKylpEqjcaFmjhLeUw7habIZprUjCBo83lpXVApo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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