Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '04cbf8d00beab9fba618c47ff40474a5a8a321bd628e9d8e51290036c01be98b' 
  AND token = 'EXLOwsRObSxlMZ9dP/vmbS4SqwKQc1GsczDrgrhitpM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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