Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1bea7782c5f795e83404836bb1dcfc0b377d8ca54513b5d46b83bf213d990988' 
  AND token = 'TUof8pzoIU/O/Z7v8vu/5J4kqY11NPtqnvEEMbRQr6M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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