Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c2410860001b8b00678d8067148f1c8abb4f4762a2a9c98c7d3a593f3dd21ddf' 
  AND token = 'ir399a9eSX5vY+J73HLQCPTKRbZsCVXeQ+ayb1+c01A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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