Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c7229cb1066207aff29eb8c482cfad04f15b918b51eed6b1f5fd1a05fa9b1195' 
  AND token = 'x4ZZo972wocp8GU3OYP+vqgA0n7yQ84Vommvj7mYns8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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