Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a61eda655bb577db83624515c258a926ee1e460de6bb87a7f537c673f9e68861' 
  AND token = 'HrWBC3Qh2+5xc/qy0Q1ADafHRrdZyQEJxznxS51eraE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00013

JSON explain

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