Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '89074340633d392b932e486c26cc084be15cf5584583c282f2fc7e4410142c60' 
  AND token = 'PQKQ+OMdwCnGNERHV/1gRalW+H2kJw5Dmof/fCIsHus=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}