Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c07b1d85a35d4a58833c58553052e00ad723b47f6f2dd1a3c51668f03c1ae62d' 
  AND token = 'ILbze/TXgUpAp6AsbfaBJ8LzbO/lS9rEqDiu7hHOpXs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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