Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0be46d71d9a0a55ea1bcd946cc738b46702583e852e3185561693eea017b4567' 
  AND token = 'zqhlLiPAaPgPLHLdvM4l6VnO7FZfSCIqp3WMZ2K7aTg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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