Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '14123d189183780c98ac0f1232437cd79afb9a254af43707d4324ea25cf40e97' 
  AND token = 'UAOhulXwC3mL1RtkgY8oxXRygk3Ysk5+YukQx1DUX70=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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