Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = 'cf058263efc31b4792848c555b005c92003af2a009ce30be3cb3b0260adc296e' 
  AND token = 'f1DX7qBq8qw5vP5K5UnFLT5WLXek9UAl2itYfZFWvRU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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