Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '269549615049f9f4ec9758af31d735c536ce0121ee4a2f2fedeee637fc20a053' 
  AND token = 'OKlvgMlN1LVMGS6VVnX9qca1cdD2C0gOlO+DIQXihZ4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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