Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '95180d82c5ff885f26451b5ae808d0c8731c17829037036e798c60cb84929b10' 
  AND token = 'z9GV0Rn4ESzvljBylXvNfOI5ZN/ymiMIuO6G6rgZ0BY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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