Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '32449a5b4c03b8ec62d575b198b775edd1c702fe62812e11fbc6ca817b1d7723' 
  AND token = 'I2cD/53dmRxN/ijnfOSMaSpG32g/eWCX4w/Q7GE9aY8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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