Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '70f0c1586b0568ede8e0bbf2c03128ebadee6175735626f150a619fedd0ad390' 
  AND token = 'rlTB5Bcs9RXb/txeqpBm82BgcZLsqkGd4ZR1J8vja+M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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