Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0ebb2fef11b2e2dc5b5b002fe912d5cadbc1217645a2e97a5b18eb3b0eeea5ae' 
  AND token = 'sBVKHR5b3MpFFdvxuW/+p8oKUgY5p7TGywEawixTrTs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00084

JSON explain

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