Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8299153c67720836915631754fe12031048b141ba1d769c9e88693a0786924d8' 
  AND token = 'v48ewDoIGAwsICuXr0SSmPJti/fyqTyJF5ME4+XOLW4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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