Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '713503323c6719335f2212433d0b5820a09cef5c65527fb8f1a10b7dd6142387' 
  AND token = 'EAK92iEKvfQJ+eNlNZRn2dZ37Qdi2m7alaWfHSXcv5Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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