Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0ee00caa3878ba58df047c926274c52456901fafe4e072749f700f2b8cd9bda5' 
  AND token = 'yJnp/q4stV2hUONvi0P4eAkfz846W7C++5vbBybsW1U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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