Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '01d132cca97e59203a3a0756a5d82adae2bc4b86c803666d0148b81bd0f4b2a4' 
  AND token = 'p4GElAwg6I/z+xNQVInMe92WkyQ30qRz6NpgNzXNyOo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00081

JSON explain

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