Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4530c0c6d4c079ad1700ff457bb8bf11d2a12222b1c352b7db7fd9004f2de8e9' 
  AND token = 'ei52CmX1m3aD1dgPcf6ePJltF1hfrn7RiioYsBMbUK4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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