Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2e4a414ec2e89d87567d0e5e5541b9ce69dd25d253cba180d9c76fdef257ec95' 
  AND token = 'xrC9p/xwNfdwFsD6NIpe3Y9HbniOarQRBGi/HOeU46Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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