Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '59d9edce989b4cb58971702fb59d47bc613695e1376fd5b240c432757b1e7824' 
  AND token = 'MTfJ/jspWO9l2xQeeFPMiPl4Pu4qYViP0qhjG2YPXiA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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