Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '11b070300b09ffacf3cf02651f0f6a4de75450c7bff381bc986f95345b91b5f5' 
  AND token = 'fNp7NaiKTvQGpFmEBFHlnbaIovde5ZBRHwV4dJgO9FM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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