Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '013ffe460e1dab1936d87aa0f4430808e96db96f579c5cfda34da270a0f42ef6' 
  AND token = 'bgoZr2QF0eA/YRhacUiFFV1oDsKjtSoVgPAyRx/SLvM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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