Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd1c00aa8b3997e3ab69424f59b80952448176b8b81a47ecfa9f279826611b0de' 
  AND token = '9miTxCc5gBO5DNUIk87mG68QrMD1Eu/iHsVC5j89hV8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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