Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5f035b38ed6334d92cff54196d6790b4ba6d109632e7187584943fff2edcbd22' 
  AND token = 'CpfvKmlW8c/aPj4dLCxXseX6VaOt5LLE3yUnY6Ey4mk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00178

JSON explain

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