Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0b04bd7120e66346e1e72f3ff1ac7addc769fc75a3c02de5d590d05dcd8277d7' 
  AND token = '5E+gSEK0TwXxF+eaDTU6RLQxocFTU506NBAqnycbkUg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

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