Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'be4f2891fa340bcb9bfb3d44ae967a04d72f08b06a0acf9db5dd034e77a9f542' 
  AND token = 'HtAVr0/3exPkszGYEyqV2Edzm89EpCXIWsW6kanq+rQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00064

JSON explain

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