Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c69d6bba2e3a87a49536943756315e0ec34441e305b9f55c083bcd947f89352a' 
  AND token = 'G9NO+pZnCCh9wp7IF1Zo4idH3MASqk75tuBfiwGHp2g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00081

JSON explain

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