Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a32b5af9aecfea688db432be691584eb024133a075dfb95787fbf4423c8a2eaa' 
  AND token = 'oHr3gJDh6NLB7R1yOmAlDv/IkdvjeLFR/mpr6MNqRr8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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