Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f661c50b231fadbd46d3903566d6dcbac165a66f638afa58cd0d114b1050414d' 
  AND token = 'U5BG9Bd27dM3q+FEyRB5zie+Un+GmnFM+nQzoEpjdlM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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