Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bf222094e3e20769b5f9da9a6eb3a82481b2c6f616f6035677b9f1b3fdf997ca' 
  AND token = '/kvHjMlwSrqf137Z6s3f36HQlkdZdw4IpMThVIrnJ5U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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