Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5ee452bc92d271c5441686e85859941bc088c4002dcd73a6dd183c61d63e6f56' 
  AND token = 'ZirYTj2D4e0hAeaq3G2rhkHHrGbdeACIF6Oncqxg6Iw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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