Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '83bf64f0b159384670c9d9c9af4d5f2c1f791c4a764d1c6e74c9b4f74af0b5f0' 
  AND token = 'XMVwRZn0GoSpS02XsXWx+XIJIFpvHYtH4rN+Ly9piuk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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