Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2bb33a90d32b4a75abeb6c43aea09fea0b8886ad77694e60080f910413ca6dc6' 
  AND token = 'QVnAZ4AIRDAEqvnnVw67xqOJDFKaY+34wLEEfKTdu3w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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