Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '589c3d0f9f45f387fb7da3cfda8a07bbc25be9eec2c266439584f9bbf74b87b7' 
  AND token = 'GaXwRrjlrDWd9MV/hmIxRPH096oaZyuDvveeUAlpT4s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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