Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0097abec45167e34bde38065d9d95c6ec7623f10deac60e7d21d39061405e0b7' 
  AND token = 'jNTrcH6NwfhPy3cy1EQOVc4WM0atXsRNkKGjlYVkrY0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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