Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1bd2af3a7e0631eb7937b1efad8cafad97c71fe79743ff7cf035ca55a100b8f5' 
  AND token = 'FZmG/Vm9VQ0qkxwZNIlfsAg8KqPok12RfK7qZtTqkko=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00074

JSON explain

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