Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'aff7ba5528936a2564a174a0c419c34f375b62f133a2239b63d4f15a431d7882' 
  AND token = '/IvKv7uxpxrmQCQfp2hyqmIRAmz0ntz5eOCEkCM6aYI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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