Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '62be5e50b198f877cebd18f9df01b70a61d9e66dd8c955562fb42ac3c57c6814' 
  AND token = '9FvQgYZRi6kDWrfPYIroWqo8AbZiZ8f4rV859AAv/mA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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