Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6ba92f23a940cf11d9896009c7e737308d5909fbb0083530ed5eaaa9041fd632' 
  AND token = 'Gqkr2t7DxL2QpYggh/7rSZz58dfYqLxAyoLMxbfX+ek=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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